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-12x+12=-3(5x+8)
We move all terms to the left:
-12x+12-(-3(5x+8))=0
We calculate terms in parentheses: -(-3(5x+8)), so:We get rid of parentheses
-3(5x+8)
We multiply parentheses
-15x-24
Back to the equation:
-(-15x-24)
-12x+15x+24+12=0
We add all the numbers together, and all the variables
3x+36=0
We move all terms containing x to the left, all other terms to the right
3x=-36
x=-36/3
x=-12
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