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13x-21-2=27x+12-5x-2x
We move all terms to the left:
13x-21-2-(27x+12-5x-2x)=0
We add all the numbers together, and all the variables
13x-(20x+12)-21-2=0
We add all the numbers together, and all the variables
13x-(20x+12)-23=0
We get rid of parentheses
13x-20x-12-23=0
We add all the numbers together, and all the variables
-7x-35=0
We move all terms containing x to the left, all other terms to the right
-7x=35
x=35/-7
x=-5
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