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-6y+13+9y=8y-9
We move all terms to the left:
-6y+13+9y-(8y-9)=0
We add all the numbers together, and all the variables
3y-(8y-9)+13=0
We get rid of parentheses
3y-8y+9+13=0
We add all the numbers together, and all the variables
-5y+22=0
We move all terms containing y to the left, all other terms to the right
-5y=-22
y=-22/-5
y=4+2/5
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