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-4y+30.9=5.3
We move all terms to the left:
-4y+30.9-(5.3)=0
We add all the numbers together, and all the variables
-4y+25.6=0
We move all terms containing y to the left, all other terms to the right
-4y=-25.6
y=-25.6/-4
y=6+1/2.5
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