9=r/8+18

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Solution for 9=r/8+18 equation: 



9=r/8+18

We move all terms to the left:

9-(r/8+18)=0

We get rid of parentheses

-r/8-18+9=0

We multiply all the terms by the denominator


-r-18*8+9*8=0

We add all the numbers together, and all the variables

-1r-72=0

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

-r=72

r=72/-1

r=-72

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