-20+5r=20+r

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



-20+5r=20+r

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

5r-r-20-20=0

We add all the numbers together, and all the variables

4r-40=0

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

4r=40

r=40/4

r=10

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