-9.1=2.1+y/7

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Solution for -9.1=2.1+y/7 equation: 



-9.1=2.1+y/7

We move all terms to the left:

-9.1-(2.1+y/7)=0

We add all the numbers together, and all the variables

-(y/7+2.1)-9.1=0

We get rid of parentheses

-y/7-2.1-9.1=0

We multiply all the terms by the denominator


-y-(2.1)*7-(9.1)*7=0

We add all the numbers together, and all the variables

-1y-78.4=0

We move all terms containing y to the left, all other terms to the right

-y=78.4

y=78.4/-1

y=-78+0.40000000000001/1

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