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8.7=6.5+y
We move all terms to the left:
8.7-(6.5+y)=0
We add all the numbers together, and all the variables
-(y+6.5)+8.7=0
We get rid of parentheses
-y-6.5+8.7=0
We add all the numbers together, and all the variables
-1y+2.2=0
We move all terms containing y to the left, all other terms to the right
-y=-2.2
y=-2.2/-1
y=2+0.2/1
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