3(1-4a)=-81

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



3(1-4a)=-81

We move all terms to the left:

3(1-4a)-(-81)=0

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-12a+3+81=0

We add all the numbers together, and all the variables

-12a+84=0

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

-12a=-84

a=-84/-12

a=+7

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