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5(-y-3)+2y=9
We move all terms to the left:
5(-y-3)+2y-(9)=0
We add all the numbers together, and all the variables
5(-1y-3)+2y-9=0
We add all the numbers together, and all the variables
2y+5(-1y-3)-9=0
We multiply parentheses
2y-5y-15-9=0
We add all the numbers together, and all the variables
-3y-24=0
We move all terms containing y to the left, all other terms to the right
-3y=24
y=24/-3
y=-8
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