8=r/9+3

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Solution for 8=r/9+3 equation: 



8=r/9+3

We move all terms to the left:

8-(r/9+3)=0

We get rid of parentheses

-r/9-3+8=0

We multiply all the terms by the denominator


-r-3*9+8*9=0

We add all the numbers together, and all the variables

-1r+45=0

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

-r=-45

r=-45/-1

r=+45

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