R2=8-7r

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Solution for R2=8-7r equation: 



2=8-7R

We move all terms to the left:

2-(8-7R)=0

We add all the numbers together, and all the variables

-(-7R+8)+2=0

We get rid of parentheses

7R-8+2=0

We add all the numbers together, and all the variables

7R-6=0

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

7R=6

R=6/7

R=6/7

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