-17-18-r=4r+20

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Solution for -17-18-r=4r+20 equation: 



-17-18-r=4r+20

We move all terms to the left:

-17-18-r-(4r+20)=0

We add all the numbers together, and all the variables

-1r-(4r+20)-35=0

We get rid of parentheses

-1r-4r-20-35=0

We add all the numbers together, and all the variables

-5r-55=0

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

-5r=55

r=55/-5

r=-11

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