-3(4x+1)=81

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Solution for -3(4x+1)=81 equation: 



-3(4x+1)=81

We move all terms to the left:

-3(4x+1)-(81)=0

We multiply parentheses

-12x-3-81=0

We add all the numbers together, and all the variables

-12x-84=0

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

-12x=84

x=84/-12

x=-7

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