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15x+7=2(x-3)
We move all terms to the left:
15x+7-(2(x-3))=0
We calculate terms in parentheses: -(2(x-3)), so:We get rid of parentheses
2(x-3)
We multiply parentheses
2x-6
Back to the equation:
-(2x-6)
15x-2x+6+7=0
We add all the numbers together, and all the variables
13x+13=0
We move all terms containing x to the left, all other terms to the right
13x=-13
x=-13/13
x=-1
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