-20=r/3-8

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Solution for -20=r/3-8 equation: 



-20=r/3-8

We move all terms to the left:

-20-(r/3-8)=0

We get rid of parentheses

-r/3+8-20=0

We multiply all the terms by the denominator


-r+8*3-20*3=0

We add all the numbers together, and all the variables

-1r-36=0

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

-r=36

r=36/-1

r=-36

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