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-19=8-9y
We move all terms to the left:
-19-(8-9y)=0
We add all the numbers together, and all the variables
-(-9y+8)-19=0
We get rid of parentheses
9y-8-19=0
We add all the numbers together, and all the variables
9y-27=0
We move all terms containing y to the left, all other terms to the right
9y=27
y=27/9
y=3
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