y-2.1=7.5y

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Solution for y-2.1=7.5y equation: 



y-2.1=7.5y

We move all terms to the left:

y-2.1-(7.5y)=0

We add all the numbers together, and all the variables

y-(+7.5y)-2.1=0

We get rid of parentheses

y-7.5y-2.1=0

We add all the numbers together, and all the variables

-6.5y-2.1=0

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

-6.5y=2.1

y=2.1/-6.5

y=-1/3.0952380952381

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