-r-20=-5r-72=

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Solution for -r-20=-5r-72= equation: 



-r-20=-5r-72=

We move all terms to the left:

-r-20-(-5r-72)=0

We add all the numbers together, and all the variables

-1r-(-5r-72)-20=0

We get rid of parentheses

-1r+5r+72-20=0

We add all the numbers together, and all the variables

4r+52=0

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

4r=-52

r=-52/4

r=-13

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