-17=3-2r

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Solution for -17=3-2r equation: 



-17=3-2r

We move all terms to the left:

-17-(3-2r)=0

We add all the numbers together, and all the variables

-(-2r+3)-17=0

We get rid of parentheses

2r-3-17=0

We add all the numbers together, and all the variables

2r-20=0

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

2r=20

r=20/2

r=10

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