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28.500+75y=42.000
We move all terms to the left:
28.500+75y-(42.000)=0
We add all the numbers together, and all the variables
75y+28.500-42=0
We add all the numbers together, and all the variables
75y-13.5=0
We move all terms containing y to the left, all other terms to the right
75y=13.5
y=13.5/75
y=9/50
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