4=r+17

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Solution for 4=r+17 equation: 



4=r+17

We move all terms to the left:

4-(r+17)=0

We get rid of parentheses

-r-17+4=0

We add all the numbers together, and all the variables

-1r-13=0

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

-r=13

r=13/-1

r=-13

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