-3=7(-3x-3)=-108

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Solution for -3=7(-3x-3)=-108 equation: 



-3=7(-3x-3)=-108

We move all terms to the left:

-3-(7(-3x-3))=0



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

7(-3x-3)

We multiply parentheses

-21x-21

Back to the equation:

-(-21x-21)



We get rid of parentheses

21x+21-3=0

We add all the numbers together, and all the variables

21x+18=0

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

21x=-18

x=-18/21

x=-6/7

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