-87=3x-4(-x+6)

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Solution for -87=3x-4(-x+6) equation: 



-87=3x-4(-x+6)

We move all terms to the left:

-87-(3x-4(-x+6))=0

We add all the numbers together, and all the variables

-(3x-4(-1x+6))-87=0



We calculate terms in parentheses: -(3x-4(-1x+6)), so:

3x-4(-1x+6)

We multiply parentheses

3x+4x-24

We add all the numbers together, and all the variables

7x-24

Back to the equation:

-(7x-24)



We get rid of parentheses

-7x+24-87=0

We add all the numbers together, and all the variables

-7x-63=0

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

-7x=63

x=63/-7

x=-9

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