Solve x − 2y = 3 for x.

Answers

Answer 1

Answer:

[tex]x=2y+3[/tex]

Step-by-step explanation:

So we have the equation:

[tex]x-2y=3[/tex]

And we want to solve for x. In other words, we want to isolate the x-variable.

So, add 2y to both sides of the equation.

[tex](x-2y)+2y=(3)+2y[/tex]

On the left, the 2y cancel. Simplify the right:

[tex]x=2y+3[/tex]

And we're done!

Answer 2

Answer:

x = 3 + 2y

Step-by-step explanation:

This is the answer because:

1) First, you have to isolate x, in order to isolate x you have to bring x to the end of the equation.

2) Then, you have to add 2y to both sides of the equation.  

Another way you can think of this is:

1) If you add 3 + 2y you would figure out the answer because if you want to find x for a subtraction equation, you can add the answer to the equation with the number.

For example, x - 20 = 10, now to figure this equation out, you can either isolate the x, or you can add the answer in the equation with the remaining number in the equation.

Hope this helps!  


Related Questions

Explain how to simplify the expression -98 - 31? Using the additive inverse.

Answers

Given:

The expression is -98 - 31.

To find:

The value of the given expression using the additive inverse.

Solution:

According to the  additive inverse, for any number a,

[tex]a+(-a)=0[/tex]

Using additive inverse, we have

[tex]98+(-98)=0[/tex]      ...(i)

[tex]31+(-31)=0[/tex]           ...(ii)

Now, using (i) and (ii), we get

[tex]98+(-98)+31+(-31)=0[/tex]

[tex](98+31)+(-98-31)=0[/tex]

[tex]129+(-98-31)=0[/tex]

Subtracting 129 from both sides, we get

[tex]-98-31=-129[/tex]

Therefore, the value of given expression is -129.

An item has a listed price of $95. If the sales tax rate is 9%, how much is the sales tax (in dollars)?

Answers

$8.55 You take the 95 dollars and multiply it by the sales tax (0.09) to get $8.55

A bookshelf at a library holds 156 books. There are 15 bookshelves in the children's
section. How many children's books can the library place on the bookshelves?

Answers

Answer:

10

Step-by-step explanation:

i just divided the two

Answer:

2,340

Step-by-step explanation:

A car rental company charges $19.99 per day and $0.17 per mile. Write an expression that gives the total cost in dollars to rent a car for d days and m miles.

I WILL GIVE BRAINLIEST TO THE BEST ANSWER

Answers

Answer= 19.99d + 0.17m

yesterday Jenny had c baseball cards. Today she gave 5 away. Using c, write an expression for number of cards Jenny has left.​

Answers

Answer:

C - 5

thats like the only one i know sorry

How do I do this, please explain.

Answers

All i know is that the solution to 4(x+1)=40 is x=9.

Question 6
1 pts
Paran had $85.58. He bought a book for $24.98 and a pack of pens for $2.49.
About how much money does Paran have left?
Between $55.50 and $57.50
Between $57.50 and $59.50
Between $59.50 and $61.50
Between $61.50 and $63.50
Onestion 7
2 nits
Y

Answers

Answer:

Between $59.50 and $61.50

Step-by-step explanation:

Since this is about, we have to round the numbers.

85.58 is rounded to 86

24.98 is rounded to 25

2.49 is rounded to 2.50

Therefore:

86 - 25 - 2.50 = 59.50

So the correct answer is #3

The perimeter of a parallelogram is 68 me ters. The width of the parallelogram is 6 meters less than its length. Find the length and the width of the parallelogram. x meters (x-6) meters 6x+6(x-6) 68 The length of the parallelogram is The width of the parallelogram is NG Che Answer Noy Ouestion​

Answers

Answer:

62 is the width

In a laboratory, the number of bacteria in a petri dish after t days is modeled by the function B (t) = 300,000/1+999e^-0.5t What does 300,000 represent?

initial number of bacteria in the petri dish
number of bacteria in the petri dish after one day
number of bacteria in the petri dish at any given time
maximum number of the bacteria the petri dish can hold

Answers

Answer: D

Step-by-step explanation:

Number at the top is the max

Answer:

maximum number of the bacteria the petri dish can hold

Step-by-step explanation:

Steve Fossett completed the first solo balloon circumnavigation of the world after 13.5 days. Assuming the balloon travelled along a circle of diameter 12 750 km, roughly what was the average speed of the balloon in km/h?

A) 12
B) 40
C) 75
D) 120
E) 300​

Answers

Answer:

B) 40

Step-by-step explanation:

Average speed = distance/time

Distance = 12750 km

Time = 13.5 days = 13.5*24  hours = 324 hours

Speed = 12750 km /324 h =  39.4 km/h ≈ 40 km/h

Correct option is B) 40

please help number 6 need it for hw

Answers

This is the graph for the problem

does anyone know these?? please help :(

Answers

1- ABD
2- BC(with and arrow drawn above because it’s a ray) and BE (with and arrow drawn above because it’s a ray)
3- x=18
4- ABD=32
5- ABC=162
6- x=19
7- ABD=23

How many times does 85 go into 12

Answers

Answer:

-73

Step-by-step explanation:

Answer: -73

Step-by-step explanation: ,

Is 39,052 divisible by 3?

Answers

3+9+0+5+2= 19
19 is not divisible by 3 so the answer is no

Answer:

no as the answer would be a decimal

Step-by-step explanation:

an easier way to know is to add up all the digits

3 + 9+0 +5+2= 19 and if that number is a multiple of 3 then it will be divisible by 3

this works for any number that should be divided by 3

example

is 2345 divisible by 3

2+3+4+5 =14 so no it is not divisible by 3

example

is 12345 divisible by 3

1+2+3+4+5 =15 so yes it is divisible by 3

hope this helps

pls can u help me with my most recent question pls and thx

Which expression is shown using the model below? A model with 6 rows of 6 squares and 6 rows of 5 squares. 5 (6 + 6) 5 (6 + 5) 6 (6 + 5) 6 (6 + 10)

Answers

Answer:

c

Step-by-step explanation:

i took a quiz and got it right

C

Step-by-step explanation:

i also took the test


There was 3/4 of a pizza left over from a party. The next day, Bob ate half of what was left. How much of a whole pizza did Bob eat?

Answers

Answer:

2 and 1/2 if he ate the 1/4th also but if he just ate the half of the 3/4 its 1 and 1/2

Step-by-step explanation:

An investment of $7,500 increases at a rate of 10.5% per year. Find the value of the investment after 5 years.​

Answers

10.5%= 1.105
7,500•1.105=8287.5
8287.5•5=41437.5

Answer= $41,437.5


2w – y = 7w – 2, solve for w​

Answers

Answer:

-1/5y + 2/5

Step-by-step explanation:

add -7w to both sides

-5w-y=-2

Divide both sides by -5

w= -1/5y +2/5

someone help please 50 points and have an explanation

Answers

Answer:

i think that the answer is 5°

37.67 x 70.71 (please show the work) but I need u to explain with numbers ​

Answers

37.67
x
70.71
————
2663.6457
Is that how you want it?

X+y=__ when x=2 and y=3 (substitute and give the answer)

Answers

Answer:

5

Step-by-step explanation:

plug in the numbers

2 + 3 = 5

I Need All Three , please show work !

Answers

Answer:

1) d=25 2) d=2[tex]\sqrt{2}[/tex]  3) d=[tex]13\sqrt{2}[/tex]      

Step-by-step explanation:

[tex]d=\sqrt{(-2-1)^2+(-2-2)^2}\\ d=\sqrt{(-3)^2+(-4)^2} \\d=\sqrt{(-9)+(-16)}\\d=\sqrt{-25} \\d=5[/tex]

[tex]d=\sqrt{(5-3)^2+(-4-(-6))^2}\\ d=\sqrt{(2)^2+(2)^2} \\d=\sqrt{(4)+(4)}\\d=\sqrt{8} \\d=2\sqrt{2}[/tex]

[tex]d=\sqrt{(8-(-9))^2+(-7-0)^2}\\ d=\sqrt{(17)^2+(-7)^2} \\d=\sqrt{(289)+(49)}\\d=\sqrt{338} \\d=13\sqrt{2}[/tex]

Find the distance between each pair of points. Round to the nearest tenth
(-2,2) (5,2)

Answers

Answer:

Distance = 7

Step-by-step explanation:

[tex]d= \sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\d= \sqrt{(5-(-2))^2+(2-2)^2} \\d= \sqrt{(7)^2+(0)^2} \\d= \sqrt{49+0} \\d= \sqrt{49}\\ d= 7[/tex]

A store buys bananas by weight. The total cost to buy 5 pounds of bananas is $ 3.75. Which choice shows how to correctly calculate the total cost T to buy 2 pounds of bananans

Answers

Answer

5=$3.75

3.75÷5=.75 ($.75 per banana)

.75x2=T

T=$1.50

Step-by-step explanation:

Answer:

T = 0.75(2)

Step-by-step explanation:

$3.75 ÷ 5 = 0.75

0.75 x 2 = 1.5

T = 0.75(2)

2 3/8 - (-2 7/8) figure this out before the end of the day please

Answers

Answer:

5 1/4

Step-by-step explanation:

Subtracting a negative is the same as adding a positive.

2 3/8 - (-2 7/8) =

= 2 3/8 + 2 7/8

= 4 10/8

= 4 + 8/8 + 2/8

= 4 + 1 + 1/4

= 5 1/4

B is between A and C. If AB = 7x - 2, BC = 3x + 1 and AC = 59, Find AB

Answers

Answer:

           AB = 40

Step-by-step explanation:

B is between A and C so:

AB + BC = AC

7x - 2 + 3x + 1 = 59

10x - 1 = 59

      +1     +1

 10x  = 60

÷10      ÷10

  x = 6

AB = 7x - 2 = 7×6 - 2 = 42 - 2 = 40

Which decimal is equivalent to
2/7 ?

0.27
0.285714
0.285714
0.27

Answers

Answer:

0.285714 is the answer to your question

Find the measure of an angle if its measure is 26 degrees more than three times its compliment?
16
141
74
42

Answers

The complement = x

The angle we are finding = 3x + 26

Complementary angles are angles that add up to 90 degrees.

90 = x + 3x + 26

Combine like terms

90 = 4x + 26

Subtract 26 from both sides

64 = 4x

Divide both sides by 4

16 = x

The angle we are trying to find = 3(16) + 26 = 48 + 26 = 74 degrees

At the Tucson Zoo, Jason spends $6.00 to enter the zoo and $2.00 per animal to feed them. Meanwhile, at the Phoenix Zoo, Kim spends $15.00 to enter and $1.00 per animal to feed them.The equation 6 + 2x = 15 + x represents this situation. How many animals do they need to feed in order to spend the same amount?
PLEASE ANSWER QUICKLY

Answers

Answer:

3 animals

Step-by-step explanation:

combine like terms 6 + 2x = 15 + x -6   +  x   - 6  - x

     --------------------------

         3x = 9

     2. divide both sides by 3

3x/ 3 = 9/3x = 3        

worksheet math
Write the group of natural number



Answers

Answer:

natural number starts from 1

1 2 3 4 5  6 7 8 9 10 ...................

Step-by-step explanation:

Answer:

Natural numbers are also called whole, positive numbers. 1, 2, 3,4 and so on represent this. Hopefully this helps!

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