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8y-3+4.5y=-27.5
We move all terms to the left:
8y-3+4.5y-(-27.5)=0
We add all the numbers together, and all the variables
12.5y+24.5=0
We move all terms containing y to the left, all other terms to the right
12.5y=-24.5
y=-24.5/12.5
y=-1+1/1.0416666666667
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