2r+20=200r=90

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Solution for 2r+20=200r=90 equation: 



2r+20=200r=90

We move all terms to the left:

2r+20-(200r)=0

We add all the numbers together, and all the variables

-198r+20=0

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

-198r=-20

r=-20/-198

r=10/99

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