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(12x+13)+(2x+17)=180
We move all terms to the left:
(12x+13)+(2x+17)-(180)=0
We get rid of parentheses
12x+2x+13+17-180=0
We add all the numbers together, and all the variables
14x-150=0
We move all terms containing x to the left, all other terms to the right
14x=150
x=150/14
x=10+5/7
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