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(8x+12)=18
We move all terms to the left:
(8x+12)-(18)=0
We get rid of parentheses
8x+12-18=0
We add all the numbers together, and all the variables
8x-6=0
We move all terms containing x to the left, all other terms to the right
8x=6
x=6/8
x=3/4
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