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-2y=15.7
We move all terms to the left:
-2y-(15.7)=0
We add all the numbers together, and all the variables
-2y-15.7=0
We move all terms containing y to the left, all other terms to the right
-2y=15.7
y=15.7/-2
y=-7+1/1.1764705882353
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