20=4r+6r

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Solution for 20=4r+6r equation: 



20=4r+6r

We move all terms to the left:

20-(4r+6r)=0

We add all the numbers together, and all the variables

-(+10r)+20=0

We get rid of parentheses

-10r+20=0

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

-10r=-20

r=-20/-10

r=+2

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