3(7+6x)=129

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Solution for 3(7+6x)=129 equation: 



3(7+6x)=129

We move all terms to the left:

3(7+6x)-(129)=0

We add all the numbers together, and all the variables

3(6x+7)-129=0

We multiply parentheses

18x+21-129=0

We add all the numbers together, and all the variables

18x-108=0

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

18x=108

x=108/18

x=6

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