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7(1-y)=13(y-2)
We move all terms to the left:
7(1-y)-(13(y-2))=0
We add all the numbers together, and all the variables
7(-1y+1)-(13(y-2))=0
We multiply parentheses
-7y-(13(y-2))+7=0
We calculate terms in parentheses: -(13(y-2)), so:We get rid of parentheses
13(y-2)
We multiply parentheses
13y-26
Back to the equation:
-(13y-26)
-7y-13y+26+7=0
We add all the numbers together, and all the variables
-20y+33=0
We move all terms containing y to the left, all other terms to the right
-20y=-33
y=-33/-20
y=1+13/20
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