-168=7x-3(-5x+12)

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Solution for -168=7x-3(-5x+12) equation: 



-168=7x-3(-5x+12)

We move all terms to the left:

-168-(7x-3(-5x+12))=0



We calculate terms in parentheses: -(7x-3(-5x+12)), so:

7x-3(-5x+12)

We multiply parentheses

7x+15x-36

We add all the numbers together, and all the variables

22x-36

Back to the equation:

-(22x-36)



We get rid of parentheses

-22x+36-168=0

We add all the numbers together, and all the variables

-22x-132=0

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

-22x=132

x=132/-22

x=-6

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