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-13=8y+3(y+3)
We move all terms to the left:
-13-(8y+3(y+3))=0
We calculate terms in parentheses: -(8y+3(y+3)), so:We get rid of parentheses
8y+3(y+3)
We multiply parentheses
8y+3y+9
We add all the numbers together, and all the variables
11y+9
Back to the equation:
-(11y+9)
-11y-9-13=0
We add all the numbers together, and all the variables
-11y-22=0
We move all terms containing y to the left, all other terms to the right
-11y=22
y=22/-11
y=-2
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