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-2x+12=8x-68
We move all terms to the left:
-2x+12-(8x-68)=0
We get rid of parentheses
-2x-8x+68+12=0
We add all the numbers together, and all the variables
-10x+80=0
We move all terms containing x to the left, all other terms to the right
-10x=-80
x=-80/-10
x=+8
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