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28-y/2=2y(y+2)
We move all terms to the left:
28-y/2-(2y(y+2))=0
We multiply all the terms by the denominator
-y-((2y(y+2)))*2+28*2=0
We add all the numbers together, and all the variables
-1y-((2y(y+2)))*2+56=0
We move all terms containing y to the left, all other terms to the right
-1y-((2y(y+2)))*2=-56
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