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12=-5x+2(x+3)
We move all terms to the left:
12-(-5x+2(x+3))=0
We calculate terms in parentheses: -(-5x+2(x+3)), so:We get rid of parentheses
-5x+2(x+3)
We multiply parentheses
-5x+2x+6
We add all the numbers together, and all the variables
-3x+6
Back to the equation:
-(-3x+6)
3x-6+12=0
We add all the numbers together, and all the variables
3x+6=0
We move all terms containing x to the left, all other terms to the right
3x=-6
x=-6/3
x=-2
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