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5.3=2.1-0.5y
We move all terms to the left:
5.3-(2.1-0.5y)=0
We add all the numbers together, and all the variables
-(-0.5y+2.1)+5.3=0
We get rid of parentheses
0.5y-2.1+5.3=0
We add all the numbers together, and all the variables
0.5y+3.2=0
We move all terms containing y to the left, all other terms to the right
0.5y=-3.2
y=-3.2/0.5
y=-6+0.2/0.5
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