4(a-12)=36

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Solution for 4(a-12)=36 equation: 



4(a-12)=36

We move all terms to the left:

4(a-12)-(36)=0

We multiply parentheses

4a-48-36=0

We add all the numbers together, and all the variables

4a-84=0

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

4a=84

a=84/4

a=21

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