3(2-a)=12

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Solution for 3(2-a)=12 equation: 



3(2-a)=12

We move all terms to the left:

3(2-a)-(12)=0

We add all the numbers together, and all the variables

3(-1a+2)-12=0

We multiply parentheses

-3a+6-12=0

We add all the numbers together, and all the variables

-3a-6=0

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

-3a=6

a=6/-3

a=-2

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