2.1=0.7y-0.7

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Solution for 2.1=0.7y-0.7 equation: 



2.1=0.7y-0.7

We move all terms to the left:

2.1-(0.7y-0.7)=0

We get rid of parentheses

-0.7y+0.7+2.1=0

We add all the numbers together, and all the variables

-0.7y+2.8=0

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

-0.7y=-2.8

y=-2.8/-0.7

y=+4

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