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-3+y/2=20
We move all terms to the left:
-3+y/2-(20)=0
We add all the numbers together, and all the variables
y/2-23=0
We multiply all the terms by the denominator
y-23*2=0
We add all the numbers together, and all the variables
y-46=0
We move all terms containing y to the left, all other terms to the right
y=46
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