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charle [14.2K]
2 years ago
14

Solve for x. -8x-8=-5x+13

Mathematics
2 answers:
Troyanec [42]2 years ago
8 0

Answer:

x = - 7

Step-by-step explanation:

1) Add 8 to both sides.

-8x-8=-5x+13

-8x - 8 + 8 = -5x + 13 + 8

2) Simplify

- Add the numbers

-8x - 8 + 8 = -5x + 13 + 8

-8x = -5x + 13 + 8

- Add the numbers

-8x = -5x + 13 + 8

-8x = -5x + 21

3) Simplify

- Combine like terms

-8x + 5x = -5x + 21 + 5x

-3x = -5x + 21 + 5x

- Combine like terms

-3x = -5x + 21 + 5x

-3x = 21

4) Divide both sides by the same factor

-3x + 21

-3x/-3 = 21/-3

6) Simplify

- Cancel terms that are in the numerator and denominator

-3x/-3 = 21/-3

x = 21/-3

- Divide the numbers

x = 21/-3

x = -7

klasskru [66]2 years ago
7 0
The answer would be x = -7.
Hope this helps!

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What additional information do you need to prove triangle NOP = triangle QSR?
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(by the way i'm going to be saying {the reflective side} every time i want to refer to the side with the two lines :P) - so bare with me. 

So therefore this would mean that ∠P = ∠S would be false, since one angle is from the side that is reflected and the other isn't. Makes sense?

So lets look over at the answers...

A.) PN = SQ 
For this answer choice, PN is on the non reflective side, while SQ is on the reflective side. Soooo... This answer choice is wrong. 

B.) NO = QR
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C.) ∠P = ∠S 
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There fore this answer is also wrong. 

D.) ∠O = ∠S 
Now ∠O is on the reflective side while ∠S is on the reflective as well. 
There fore this answer is correct . 

YOUR ANSWER IS. 
D.) ∠O = ∠S 

Good Luck! :)


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