3(-9+4x)=81

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Solution for 3(-9+4x)=81 equation: 



3(-9+4x)=81

We move all terms to the left:

3(-9+4x)-(81)=0

We add all the numbers together, and all the variables

3(4x-9)-81=0

We multiply parentheses

12x-27-81=0

We add all the numbers together, and all the variables

12x-108=0

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

12x=108

x=108/12

x=9

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