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-8x-64=3x+123
We move all terms to the left:
-8x-64-(3x+123)=0
We get rid of parentheses
-8x-3x-123-64=0
We add all the numbers together, and all the variables
-11x-187=0
We move all terms containing x to the left, all other terms to the right
-11x=187
x=187/-11
x=-17
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