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9x+3=-3(3x-1)
We move all terms to the left:
9x+3-(-3(3x-1))=0
We calculate terms in parentheses: -(-3(3x-1)), so:We get rid of parentheses
-3(3x-1)
We multiply parentheses
-9x+3
Back to the equation:
-(-9x+3)
9x+9x-3+3=0
We add all the numbers together, and all the variables
18x=0
x=0/18
x=0
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