-20+r=-5r+20+20

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



-20+r=-5r+20+20

We move all terms to the left:

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

We add all the numbers together, and all the variables

r-(-5r+40)-20=0

We get rid of parentheses

r+5r-40-20=0

We add all the numbers together, and all the variables

6r-60=0

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

6r=60

r=60/6

r=10

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