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x=3(2x+3)
We move all terms to the left:
x-(3(2x+3))=0
We calculate terms in parentheses: -(3(2x+3)), so:We get rid of parentheses
3(2x+3)
We multiply parentheses
6x+9
Back to the equation:
-(6x+9)
x-6x-9=0
We add all the numbers together, and all the variables
-5x-9=0
We move all terms containing x to the left, all other terms to the right
-5x=9
x=9/-5
x=-1+4/5
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