7=r/3+8

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Solution for 7=r/3+8 equation: 



7=r/3+8

We move all terms to the left:

7-(r/3+8)=0

We get rid of parentheses

-r/3-8+7=0

We multiply all the terms by the denominator


-r-8*3+7*3=0

We add all the numbers together, and all the variables

-1r-3=0

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

-r=3

r=3/-1

r=-3

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