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18y-9=3(6y-3)
We move all terms to the left:
18y-9-(3(6y-3))=0
We calculate terms in parentheses: -(3(6y-3)), so:We get rid of parentheses
3(6y-3)
We multiply parentheses
18y-9
Back to the equation:
-(18y-9)
18y-18y+9-9=0
We add all the numbers together, and all the variables
=0
y=0/1
y=0
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