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5.4=-y/8
We move all terms to the left:
5.4-(-y/8)=0
We get rid of parentheses
y/8+5.4=0
We multiply all the terms by the denominator
y+(5.4)*8=0
We add all the numbers together, and all the variables
y+43.2=0
We move all terms containing y to the left, all other terms to the right
y=-43.2
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