2r+20=4r+10

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Solution for 2r+20=4r+10 equation: 



2r+20=4r+10

We move all terms to the left:

2r+20-(4r+10)=0

We get rid of parentheses

2r-4r-10+20=0

We add all the numbers together, and all the variables

-2r+10=0

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

-2r=-10

r=-10/-2

r=+5

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