3=r/9+8

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Solution for 3=r/9+8 equation: 



3=r/9+8

We move all terms to the left:

3-(r/9+8)=0

We get rid of parentheses

-r/9-8+3=0

We multiply all the terms by the denominator


-r-8*9+3*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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