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0.2.5y-2.3=-9.8
We move all terms to the left:
0.2.5y-2.3-(-9.8)=0
We add all the numbers together, and all the variables
0.1y+7.5=0
We move all terms containing y to the left, all other terms to the right
0.1y=-7.5
y=-7.5/0.1
y=-75
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