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4=y/3.8
We move all terms to the left:
4-(y/3.8)=0
We add all the numbers together, and all the variables
-(+y/3.8)+4=0
We get rid of parentheses
-y/3.8+4=0
We multiply all the terms by the denominator
-y+4*3.8=0
We add all the numbers together, and all the variables
-1y+15.2=0
We move all terms containing y to the left, all other terms to the right
-y=-15.2
y=-15.2/-1
y=15+0.2/1
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