9+4x=-4x-87

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Solution for 9+4x=-4x-87 equation: 



9+4x=-4x-87

We move all terms to the left:

9+4x-(-4x-87)=0

We get rid of parentheses

4x+4x+87+9=0

We add all the numbers together, and all the variables

8x+96=0

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

8x=-96

x=-96/8

x=-12

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