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-0.8y=1.3
We move all terms to the left:
-0.8y-(1.3)=0
We add all the numbers together, and all the variables
-0.8y-1.3=0
We move all terms containing y to the left, all other terms to the right
-0.8y=1.3
y=1.3/-0.8
y=-1+0.5/0.8
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