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-42=6(x+12)
We move all terms to the left:
-42-(6(x+12))=0
We calculate terms in parentheses: -(6(x+12)), so:We get rid of parentheses
6(x+12)
We multiply parentheses
6x+72
Back to the equation:
-(6x+72)
-6x-72-42=0
We add all the numbers together, and all the variables
-6x-114=0
We move all terms containing x to the left, all other terms to the right
-6x=114
x=114/-6
x=-19
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