9x-(7x+7)=4x-15

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Solution for 9x-(7x+7)=4x-15 equation: 



9x-(7x+7)=4x-15

We move all terms to the left:

9x-(7x+7)-(4x-15)=0

We get rid of parentheses

9x-7x-4x-7+15=0

We add all the numbers together, and all the variables

-2x+8=0

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

-2x=-8

x=-8/-2

x=+4

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