2r-r+20=5r

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Solution for 2r-r+20=5r equation: 



2r-r+20=5r

We move all terms to the left:

2r-r+20-(5r)=0

We add all the numbers together, and all the variables

-4r+20=0

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

-4r=-20

r=-20/-4

r=+5

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