2(a-3)+4(3-a)=12

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Solution for 2(a-3)+4(3-a)=12 equation: 



2(a-3)+4(3-a)=12

We move all terms to the left:

2(a-3)+4(3-a)-(12)=0

We add all the numbers together, and all the variables

2(a-3)+4(-1a+3)-12=0

We multiply parentheses

2a-4a-6+12-12=0

We add all the numbers together, and all the variables

-2a-6=0

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

-2a=6

a=6/-2

a=-3

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