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(12.1+y)/4.9=7.071
We move all terms to the left:
(12.1+y)/4.9-(7.071)=0
We add all the numbers together, and all the variables
(y+12.1)/4.9-(7.071)=0
We add all the numbers together, and all the variables
(y+12.1)/4.9-7.071=0
We multiply all the terms by the denominator
(y+12.1)-(7.071)*4.9=0
We add all the numbers together, and all the variables
(y+12.1)-34.6479=0
We get rid of parentheses
y+12.1-34.6479=0
We add all the numbers together, and all the variables
y-22.5479=0
We move all terms containing y to the left, all other terms to the right
y=22.5479
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