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2.2=8.7y
We move all terms to the left:
2.2-(8.7y)=0
We add all the numbers together, and all the variables
-(+8.7y)+2.2=0
We get rid of parentheses
-8.7y+2.2=0
We move all terms containing y to the left, all other terms to the right
-8.7y=-2.2
y=-2.2/-8.7
y=1/3.9545454545455
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