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7y-3y-7=57.88
We move all terms to the left:
7y-3y-7-(57.88)=0
We add all the numbers together, and all the variables
4y-64.88=0
We move all terms containing y to the left, all other terms to the right
4y=64.88
y=64.88/4
y=16+0.88/4
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