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13.7y-4.79=9.9+8.1y
We move all terms to the left:
13.7y-4.79-(9.9+8.1y)=0
We add all the numbers together, and all the variables
13.7y-(8.1y+9.9)-4.79=0
We get rid of parentheses
13.7y-8.1y-9.9-4.79=0
We add all the numbers together, and all the variables
5.6y-14.69=0
We move all terms containing y to the left, all other terms to the right
5.6y=14.69
y=14.69/5.6
y=2+2.3422818791946/3.758389261745
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