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2 votes
5x-7=-10x+8 give me answer

2 Answers

7 votes
5x-7=-10+8
-5x -5x. Subtract 5x on both sides
—————
-7. =-15x+8
-8. -8
——————
-15/-15 =-15x/-15 Get x by itself
———————
X= 1

User Arafangion
by
5.0k points
6 votes

Answer:
x=1

Explanation:

1) Add 10x to each side of the equation:
-7 + 5x + 10x = 8 + -10x + 10x

2) Combine like terms: 5x + 10x = 15x ----->
-7 + 15x = 8 + -10x + 10x

3) Combine like terms: -10x + 10x = 0 ----->
-7 + 15x = 8 + 0


-7 + 15x = 8

4) Combine like terms: 8 + 7 = 15 ---->
15x = 15

5) Divide each side by 15:
x = 1

User Guannan He
by
4.7k points