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-2y-3.1=1.7
We move all terms to the left:
-2y-3.1-(1.7)=0
We add all the numbers together, and all the variables
-2y-4.8=0
We move all terms containing y to the left, all other terms to the right
-2y=4.8
y=4.8/-2
y=-2+0.8/2
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