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-13+12=13x+13
We move all terms to the left:
-13+12-(13x+13)=0
We add all the numbers together, and all the variables
-(13x+13)-1=0
We get rid of parentheses
-13x-13-1=0
We add all the numbers together, and all the variables
-13x-14=0
We move all terms containing x to the left, all other terms to the right
-13x=14
x=14/-13
x=-1+1/13
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