R-13=r/9+8

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Solution for R-13=r/9+8 equation: 



-13=R/9+8

We move all terms to the left:

-13-(R/9+8)=0

We get rid of parentheses

-R/9-8-13=0

We multiply all the terms by the denominator


-R-8*9-13*9=0

We add all the numbers together, and all the variables

-1R-189=0

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

-R=189

R=189/-1

R=-189

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