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-89=7x-5x-5
We move all terms to the left:
-89-(7x-5x-5)=0
We add all the numbers together, and all the variables
-(2x-5)-89=0
We get rid of parentheses
-2x+5-89=0
We add all the numbers together, and all the variables
-2x-84=0
We move all terms containing x to the left, all other terms to the right
-2x=84
x=84/-2
x=-42
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