-8+r=5r

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Solution for -8+r=5r equation: 



-8+r=5r

We move all terms to the left:

-8+r-(5r)=0

We add all the numbers together, and all the variables

-4r-8=0

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

-4r=8

r=8/-4

r=-2

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