Mathematics High School

combining like terms: -1 - 7x + x​

Answers

Answer 1

Answer:

=−6x−1

Step-by-step explanation:

Let's simplify step-by-step.

−1−7x+x

=−1+−7x+x

Combine Like Terms:

=−1+−7x+x

=(−7x+x)+(−1)

=−6x+−1

Answer 2

Answer: -0.125

Step-by-step explanation:

-1-7x+x

 +7   +7

-1=8x

/8  /8

x=-0.125

Related Questions

Given that 2x + 1 =5, what is the value of (x+3)^3

Answers

Answer: 125

Step-by-step explanation:

First, solve for x in the first equation.

1) Subtract 1 from both sides.

2x = 4

2) Divide by 2 on both sides.

x = 2

Next, substitute the value of x into the second expression.

(2 + 3)^3

= 5^3

= 125

Answer:

The value of (x + 3)³ is 125.

Step-by-step explanation:

First, we have to find the value of x.

To do so, start with the first equation, 2x + 1 = 5.

We can easily solve this equation to find the value of x.

First, start by subtracting 1 from each side.

This leaves us with 2x = 4.

Next, divide by two on each side.

This will leave us with the answer x = 2.

Now we know the value of x = 2.

All that's left to do is substitute the value of x, 2, for x.

First, start with the second equation (x + 3)³.

We know that x is equal to 2, so we can enter 2 for x.

We then have the equation (2 + 3)³.

Next, solve.

Add the 2 and the 3 together.

Now, the equation is 5³.

5³ is equal to 5 · 5 · 5

5 · 5 · 5 = 125

To sum up,

We found out that x = 2

Using 2 for x, we found out that (x + 3)³ is equal to 125.

is square root of 4 a irrational numbers

Answers

Answer:

yes

Step-by-step explanation:

if a even number can go into a even number a even number of times its a irrational number

Answer: no it is rational

Step-by-step explanation: A number is only irrational if it has endless decimals after it.

Which one and don’t lie!!!!!!!!!!!!

Answers

Answer:

Im pretty sure the one with the negative slope, so A.(edited im wrong)

Step-by-step explanation:

Since its descending, its impossible for it to start at zero, making it non proportional

hopefully i helped

Answer:

The answer is the graph will not pass through (0,0)

Step-by-step explanation:

What is the answer to this question 3x+7=4x

Answers

X=7
Pls mark me brainliest

Answer:

7=x

Step-by-step explanation:

3/9 can also simplify to.....

3

2/6

1/3

Answers

Answer:

1/3

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation: 3/9 can be divided by 3 on top and bottom so 3/9=1/3 because 1 times 3 is 3 and 3 times 3 is 9 which would equal 3/9.


Find the perimeter. i understand im just tired help pls

Answers

Answer:

7.9

Step-by-step explanation:

whats further maths subject all about​

Answers

Answer:

give the other chick brainliest!!

Step-by-step explanation:

Find the distance between c(-6,5)and D(-3,1)

Answers

Answer:

7

Step-by-step explanation:

Solve the system of equations..
y= 2x +42
y=8x

Answers

Answer:

x=7

Step-by-step explanation:

set up the equation equal to each other

8x=2x+42

subtract 2x from 8x.

equation should look like: 6x=42

divide 6x by 42

equal x=7

Answer:

x = 7

y = 56

Step-by-step explanation:

Sub y = 8x into first equation

8x = 2x + 42

Rearrange by collecting like terms

8x - 2x = 42

6x = 42

x = 7

Sub x = 7 into second equation

y = 8*7

y = 56

(3x 2)*7* _ x 12 x 7)​

Answers

3528x^3

when you look it up remove the bar at the bottom or its weird right?

Find the equation of the vertical line that passes (-2,-9)

Answers

Answer:

x = -2

Step-by-step explanation:

That's really it, since it's a vertical line.

Answer:

The equation of vertical line, parallel to y-axis is

x + k=0

Here, the line passes through the point (–2,–9)

So, –2 + k = 0

=> k = 2

The required equation be, x + 2 = 0

How to solve and find all the missing points?

Answers

By using theorem of pythagorus and trig ratios

What is the next number in the pattern below?

3, 9, 27, 81

Answers

Answer:

243

Step-by-step explanation:

the reason why it's 243 is because 3 x 3 = 9, 9 x 3 = 27, and 81 x 3 = 243.

Answer: Step-by-step explanation: 243

Lets look at the difference between the first two numbers (3 and 9). to get from 3 to 9, we either have to multiply by 3, or add 6.

Next, let's look at the difference between 9 and 27. to get from 9 to 27, you have to multilpy by 3, or add 18.

If we conitnue to multiply the previous by 3, we get the following number, therefore we know the answer is to multiply by 3.

if we multiply 81 by 3, we get 243

The perimeter of a rectangle is 36 m. If the length is three times the width, what is the length?

Answers

Answer:

13.5 meters

Step-by-step explanation:

As the rectangle has 4 sides and the length is three times the width, each pair of a long side and a short side has a perimeter of 18 meters. As the ratio is 3:1, there are 4 parts in 18 meters, and 18 divided by 4=4.5. As the length covers 3 parts, and there are 4.5 meters per part, 4.5x3=13.5. The length of the rectangle is 13.5 meters. Hope it helps!

Nadine made 16 cups of punch for a class party. One serving is 1/2 cup. How many servings of punch did Nadine make

Answers

Answer:

16.5

Step-by-step explanation:

16+1/2

Kiera and Trina joined a gym. The gym offers two different payment plans. Kiera chose Plan 1 and pays $25 a month and no fee to join. Trina chose Plan 2 and pays $10 a month, plus a $100 joining fee. Which equation models Kiera’s total payments, t1, and Trina’s total payments, t2, after m months?

Answers

Answer:

t1 = $25m

t2 = $(10m + 100)

Step-by-step explanation:

Here we want to write equations

Kiera chose plan 1

$25 monthly and no joining fee

So the amount after m months will be 25 * m

t1 = $25m

Trina chose plan 2

$10 a month and $100 joining fee

after m months , total payment will be

10(m) + 100 = $(10m + 100)

Thus t1 = $25m and t2 = $(10m + 100)

I NEED HELP PLEASE!!!
​

Answers

Answer:

13 seconds

Step-by-step explanation:

Since distance is directly proportional to time,

distance = time * a constant

Lets make A the constant

So, 54 = 9A

A = 6

Now, since distance = 78,

78 = time * A

From above, we can see that A = 6, so

78 = time *6

time = 13

Answer:

13

Step-by-step explanation:

54/9=6, 6 is the rate at which the car travels. 78/6 is 13 so that is how far the car traveled

i need help finding the value of x

Answers

Answer:

Step-by-step explanation:

-4\5 + 4\5 what is it

Answers

Answer:

0

Step-by-step explanation:

This is called a absolute zero If I remember correctly

Answer:

0 -4/5+4/5=0

Step-by-step explanation:

-4/5 and 4/5 are the opposite so they cancel each other out

I need help with something maybe if I can send a picture of it it will be easier​

Answers

Answer:

sure send it and I will do my best to help you..

Write the equation of the line that passes through (3, 7) and is perpendicular to
y = 3x - 4.

Answers

Answer:

y = -1/3x + 10

Step-by-step explanation:

slope perpendicular to 3 is -1/3plug what you know into y=mx+b7 = -1/3(3) + bsimplify7 = -3 + badd 3 to both sidesb = 10

Match each property to its example.

1. Commutative Property of Multiplication 0 x 3=0 2. Associative Property of Multiplication 4x 1 = 4 3. Identity Property of Multiplication 7 x 3=3x7 4. Zero Property of Multiplication (6 x 2) * 5 = 6 * (2 * 5)​

Answers

Answer:

twyeyeueuu62772737 and that is what you would have

Answer:

0 x 3=0 :Zero Property of Multiplication4 x 1=4 : Identity Property of Multiplication7 x 3=3x 7 :Associative Property of Multiplication (6 x 2) *5=6* (2 * 5) : Commutative Property of Multiplication

Step-by-step explanation:

What is the solution set for -4x + 10 2 5x + 55?
O A. x 25
o
B. X 245
O C. XS-5
O D. XS -45

Answers

Answer = A I’m pretty sure

An observation deck extends 198 feet above a valley the Dexys 148 feet above the valley floor

Answers

Answer:

198+148=346

All you have to do is add them together

How many solutions does the equation have? 4(3-5)+2=4-18 please help ​

Answers

The answer is probs  2 because i estimated it and it looks like it would

Can someone please help me

Answers

The answer is A:

<1

<5

can some some one at least answer one or two of these

Answers

Answer:

6 (for the "cody's bike" one)

Step-by-step explanation:

48-18=30

30/5-6

hope this helped! =)

Find the value of x.
55°
79°
110°
x°

Answers

Answer:

i think its 158

Step-by-step explanation:

i think what theyre doing here is a pattern because

79-55=24 and 110-79=31 which has no pattern but when u subtract 55 from 110 you get  110-55=55  so i just multiplied 79 by 2 getting the answer 158.

14. Given the function f(x) = 3x -9, what is the value of f(6)?

Answers

Answer:

f(6) = 3(6) - 9

Step-by-step explanation:

y = 3(6) - 9

y = 18 - 9

y / f(x) = 9

A top is on sale for 30% off. If the top was originally $18.50, what is the sale
price of the top?

Answers

Answer:

it will be $12.6 dollars

Step-by-step explanation:

Answer:

12.5 dollars  

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