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15x+12=2(x+15)
We move all terms to the left:
15x+12-(2(x+15))=0
We calculate terms in parentheses: -(2(x+15)), so:We get rid of parentheses
2(x+15)
We multiply parentheses
2x+30
Back to the equation:
-(2x+30)
15x-2x-30+12=0
We add all the numbers together, and all the variables
13x-18=0
We move all terms containing x to the left, all other terms to the right
13x=18
x=18/13
x=1+5/13
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