3r-4=17-4r

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Solution for 3r-4=17-4r equation: 



3r-4=17-4r

We move all terms to the left:

3r-4-(17-4r)=0

We add all the numbers together, and all the variables

3r-(-4r+17)-4=0

We get rid of parentheses

3r+4r-17-4=0

We add all the numbers together, and all the variables

7r-21=0

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

7r=21

r=21/7

r=3

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