-17=7-4r+7r

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Solution for -17=7-4r+7r equation: 



-17=7-4r+7r

We move all terms to the left:

-17-(7-4r+7r)=0

We add all the numbers together, and all the variables

-(3r+7)-17=0

We get rid of parentheses

-3r-7-17=0

We add all the numbers together, and all the variables

-3r-24=0

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

-3r=24

r=24/-3

r=-8

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