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-81=7x-32
We move all terms to the left:
-81-(7x-32)=0
We get rid of parentheses
-7x+32-81=0
We add all the numbers together, and all the variables
-7x-49=0
We move all terms containing x to the left, all other terms to the right
-7x=49
x=49/-7
x=-7
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