-3(-4x-3)=129

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Solution for -3(-4x-3)=129 equation: 



-3(-4x-3)=129

We move all terms to the left:

-3(-4x-3)-(129)=0

We multiply parentheses

12x+9-129=0

We add all the numbers together, and all the variables

12x-120=0

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

12x=120

x=120/12

x=10

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