5r=117-8r

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Solution for 5r=117-8r equation: 



5r=117-8r

We move all terms to the left:

5r-(117-8r)=0

We add all the numbers together, and all the variables

5r-(-8r+117)=0

We get rid of parentheses

5r+8r-117=0

We add all the numbers together, and all the variables

13r-117=0

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

13r=117

r=117/13

r=9

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