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(4+4x)=12
We move all terms to the left:
(4+4x)-(12)=0
We add all the numbers together, and all the variables
(4x+4)-12=0
We get rid of parentheses
4x+4-12=0
We add all the numbers together, and all the variables
4x-8=0
We move all terms containing x to the left, all other terms to the right
4x=8
x=8/4
x=2
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