7x+8=-2x-91

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Solution for 7x+8=-2x-91 equation: 



7x+8=-2x-91

We move all terms to the left:

7x+8-(-2x-91)=0

We get rid of parentheses

7x+2x+91+8=0

We add all the numbers together, and all the variables

9x+99=0

We move all terms containing x to the left, all other terms to the right

9x=-99

x=-99/9

x=-11

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