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2.7=5.4+y
We move all terms to the left:
2.7-(5.4+y)=0
We add all the numbers together, and all the variables
-(y+5.4)+2.7=0
We get rid of parentheses
-y-5.4+2.7=0
We add all the numbers together, and all the variables
-1y-2.7=0
We move all terms containing y to the left, all other terms to the right
-y=2.7
y=2.7/-1
y=-2+0.7/1
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