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-7-8(1-2x)=81
We move all terms to the left:
-7-8(1-2x)-(81)=0
We add all the numbers together, and all the variables
-8(-2x+1)-7-81=0
We add all the numbers together, and all the variables
-8(-2x+1)-88=0
We multiply parentheses
16x-8-88=0
We add all the numbers together, and all the variables
16x-96=0
We move all terms containing x to the left, all other terms to the right
16x=96
x=96/16
x=6
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