How can you isolate the variable in this equation? x + 6 = 13

Answers

Answer 1

You can isolate the variable by subtracting 6 from both sides.

e.g.

x + 6 = 13

  -  6   - 6

Now we have x = 7, which not only isolates the variable but solves for x.

If you don't know why we can subtract from both sides, look up the Addition Property of Equality and Subtraction Property of Equality.


Related Questions

Can you help me with this one math problem please?
I emailed my teacher for help but she is not responding. No one can help me.

Answers

Answer:

240

Step-by-step explanation:

if you mulitiply 6 and 5 to get 30 times 8 you get 240

sorry if wrong

Will's age is 3 years more than twice Anne's. He is 15. How old is
Anne? _____

Answers

Will is 33 years old

Annie is 6 years old

15-3=12

12 divided by 2 is 6

PLEASE HELP URGENT!!

Answers

Answer:

mathw a y

Step-by-step explanation:

use mathw a y to help solve questions like this

If a = 2 then what is 3a + 1?

Answers

Answer:

7

Step-by-step explanation:

3(2) + 1

3 x 2 = 6

6 + 1 = 7

Answer:

7

Step-by-step explanation:

3(2) + 1

6 + 1

=7

help me, 2+4 3 ×4+(2×9)

Answers

It should be 192 I’m pretty sure

List the elements in the set . Let U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}. (B ∪ A)'

Answers

I don’t get the way you ordered this can you sent me a picture of it or some

PLS HELP !! I NEED THIS ANSWER

Answers

Answer:

Option 2

Step-by-step explanation:

The measure of each vertical angle is

Answers

Answer:

i dont know ask g o o g l e

Step-by-step explanation:

An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $3820 and his stock in Company B was worth $2960. The stock in Company A has increased 15% since last year and the stock in Company B has increased 5%. What was the total percentage increase in the investor's stock account? Round your answer to the nearest tenth (if necessary).

Answers

Answer:

10.6%

Step-by-step explanation: Find new values:

3820(1+0.15)=\color{green}{4393}

3820(1+0.15)=4393

2960(1+0.05)=\color{blue}{3108}

2960(1+0.05)=3108

Last Year This Year

Stock A 3820 4393

Stock B 2960 3108

Total 6780 7501

\text{Find overall increase:}

Find overall increase:

6780(1+r)=7501

6780(1+r)=7501

\frac{6780(1+r)}{6780}=\frac{7501}{6780}

6780

6780(1+r)

=

6780

7501

1+r=1.106342

1+r=1.106342

r=0.106342

r=0.106342

Subtract 1

\text{Final Answer: }10.6\%

Final Answer: 10.6%

Multiply by 100 and round to nearest 10th

consider the expression 7 - 4y. Why would the co-efficient be -4 and not 4?

Answers

Answer:

because a co-efficient is the multiplicative factor in polynomials and it's minus 4 before the y. you would just take the minus and put it with the 4 otherwise it would just be floating there ig.

Step-by-step explanation:

Please help me. I don't understand this.​

Answers

Answer:

Neither  do i

JK

heehee

Step-by-step explanation:

EF/DF

EF/DE

(the last one)

hope this helps! :D

have a grrrreat day/night

byeeee

Which of the following rational functions is graphed below

Answers

Answer: c I’m pretty sure

Step-by-step explanation:

If it is true that z^2-6=19 then z^2+6=

Answers

Answer:

no because z^2 + 6= is not "The expression is not factorable with rational numbers."

Step-by-step explanation:

can you help? I need this solved ASAP, it's for a realize situation scenario,​

Answers

Answer:

1. 24 * 1/3^x (x=days)

2. 8/9 sq cm

The ratio of chairs to tables at a certain restaurant is 20 to 3. If there are 120 chairs in the restaurant, how many tables are there?

Answers

Answer:

20

Step-by-step explanation: 20 divided by 3 is 6, so if you divided that 120 by 6 you get 20.

What is 55% of 20? Solve and show your work.

Answers

Answer: 11

Step-by-step explanation: 11  divide 55 =0.2

that how I did it

Evaluate: 2^7•3^6•5^8 divided by 2^3•3^3•5^7

Answers

Answer:

[tex]2^{4}*3^{3}*5[/tex]

Step-by-step explanation:

[tex]\frac{x^{n} }{x^{y}}=x^{n-y}[/tex]

This means that we just subtract the exponents with identical bases so

2⁷/2³=2⁴ (7-3)

3⁶/3³=3³ (6-3)

5⁸/5⁷=5 (8-7) put them together and you get the answer

47. A figure has an area of 50 units2. What will the new perimeter be after a dilation with a scale factor of 3?
Can someone please help me

Answers

Answer:

150

Step-by-step explanation:

Answer:

150

Step-by-step explanation:

50 x 3 = 150

Will give another brain!!

Answers

Yes, SAS (Side Angle Side)


In order to be admitted for a certain ride at an amusement park, a child must be greater
than or equal to 36 inches tall. Create a graph that represents these conditions?

Answers

Child must be higher than 36 which means any number between or above 36 isn't  allowed . graph that.

Subtract 4x + 2y - 16z from ( -12x + 2y - 4z ).

Answers

Answer:

Step-by-step explanation:

4x + 2y - 16z - (-12x + 2y - 4z)

4x + 2y - 16z + 12x - 2y + 4z

16x - 12z

A circle has a diameter of 22mm. What is its circumference ?

Answers

Answer:

22[tex]\pi[/tex]

Step-by-step explanation:

Circumference = diameter * pi = 22 * pi

Answer:
69.1 mm

Explanation:
Circumference=(Pi)(diameter)
Circumference=(Pi)(22)
Circumference=69.1 mm

Therefore, the circumference of the circle is approximately 69.1 mm.

simplify the expression

Answers

Answer:

=2 (2/3)-5 (1/4) (putting the values of x and y)

=4/3-5/4

=4-5/4

-1/2

Answer:

1/12

Step-by-step explanation:

2(2/3) = 4/3 and 5(1/4) = 5/4

how do you do this plz help

Answers

each dash on the number line can be equal to numbers. what i would do is put 0 in a middle dash and to the left of it is negative number and to the right would be positioned numbers. just count by 1s or 2s for the dashes and mark where it’s -6, -4, 3, and 5.

i hope that makes sense!!

I need help I’m meeting with my teachers

Answers

Answer:

he saved $31.50

Step-by-step explanation:

What value of x makes this equation true?
-90 = -100+x
A. -190
B. 190
C. -10
D. 10

Sorry if I keep asking and making questions lol

Answers

Answer:

The correct answer is D

Step-by-step explanation:

-190 + -100 = -290

190 + -100 = 90

-10 + -100 = -110

10 + -100 = 90

✩brainliest appreciated✩

Answer:  the answer is U hoppe this helpsss

Step-by-step explanation:

3. Find the values of the variables and the lengths of the sides of this kite.

y - 3

x+2

2x+2

x+11

A. x = 9, y = 14; 11, 20

B. x = 14, y = 9; 11, 11

C. x = 14, y = 9; 6, 16

D. x = 9, y = 14; 6, 16

Answers

Answer:

So, the correct option is A. x = 9, y = 14 , Sides are 11 and 20

Step-by-step explanation:

P.S - the exact question is -

As given in the question ,

Side AB = Side AD

⇒y - 3 = x + 2

⇒y - x = 2 + 3 = 5

⇒y - x = 5                        .........(1)

Also, given

Side BC = Side CD

⇒2x + 2 = x + 11

⇒2x - x = 11 - 2

⇒x = 9

∴ equation (1) becomes

y - 9 = 5

⇒y = 5 + 9 = 14

⇒y = 14

∴ we get

x = 9, y = 14

Now,

as given ,

Side AB = y - 3

⇒ AB = 14 - 3 = 11

Side BC = 2x + 2

⇒ BC = 2(9) + 2 = 18 + 2 = 20

Side CD = x + 11

⇒ CD = 9 + 11 = 20

Side DA = x + 2

⇒DA = 9 + 2 = 11

∴ we get

The sides are 11 and 20

So,

The correct option is A. x = 9, y = 14 , Sides are 11 and 20

I need help with 1 - 4 please

Answers

Answer:

I'll help u with #1 then u can do the others hopefully

Step-by-step explanation:

y=mx+b

1. slope=m

slope=1.5 so y=1.5x+b

y-intercept=b

y-intercept=5 (because (0, 5) means x is 0 and y is 5, which is that point)

Answer: y=1.5x+5

The present value in a savings account is $420. It is receiving 3% annually compounded monthly. What is the future value in 2 months?

Answers

Answer:

$422.10

Step-by-step explanation:

According to the scenario, computation of the given data are as follows,

Present value (PV) = $420

Rate of interest( compounded monthly) = 3% annually

so, rate of interest per month (r) = 3 ÷ 12 = 0.25% per month

Time period (n) = 2 months

so, by putting the value in excel FV formula, we get.

Attachment is attached below.

Future value in 2 months = $422.10

If the ratio of boys to girls is 1:2 and there are 10 girls in your class, how many boys are there?

Answers

Answer:

5

Step-by-step explanation:

divide 10 by 2

Answer:

There are 5 boys in the class

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