-3(-7x-3)=156

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Solution for -3(-7x-3)=156 equation: 



-3(-7x-3)=156

We move all terms to the left:

-3(-7x-3)-(156)=0

We multiply parentheses

21x+9-156=0

We add all the numbers together, and all the variables

21x-147=0

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

21x=147

x=147/21

x=7

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