8.6=2.1-3.1y

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Solution for 8.6=2.1-3.1y equation: 



8.6=2.1-3.1y

We move all terms to the left:

8.6-(2.1-3.1y)=0

We add all the numbers together, and all the variables

-(-3.1y+2.1)+8.6=0

We get rid of parentheses

3.1y-2.1+8.6=0

We add all the numbers together, and all the variables

3.1y+6.5=0

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

3.1y=-6.5

y=-6.5/3.1

y=-2+0.3/3.1

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