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

User Lee Yi Hong
by
2.7k points

2 Answers

28 votes
28 votes
The answer would be x = -7.
Hope this helps!
Solve for x. -8x-8=-5x+13-example-1
User J Miller
by
2.9k points
29 votes
29 votes

Answer:

x = - 7

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

User Roland Kreuzer
by
2.7k points