-3(9a+2)=129

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Solution for -3(9a+2)=129 equation: 



-3(9a+2)=129

We move all terms to the left:

-3(9a+2)-(129)=0

We multiply parentheses

-27a-6-129=0

We add all the numbers together, and all the variables

-27a-135=0

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

-27a=135

a=135/-27

a=-5

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