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0.3y+0.1=0.5
We move all terms to the left:
0.3y+0.1-(0.5)=0
We add all the numbers together, and all the variables
0.3y-0.4=0
We move all terms containing y to the left, all other terms to the right
0.3y=0.4
y=0.4/0.3
y=1+0.1/0.3
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