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0.4y=2.8
We move all terms to the left:
0.4y-(2.8)=0
We add all the numbers together, and all the variables
0.4y-2.8=0
We move all terms containing y to the left, all other terms to the right
0.4y=2.8
y=2.8/0.4
y=6+0.4/0.4
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