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# math equation ( what does r=?)?

3r-r+15=14

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- 9 years agoFavorite Answer
The answer is r= -.5

I didn't know if you wanted the explanation or not but I wrote it just in case.

3r-r+15=14

Add 3r and -r together to get: 3r+-r=2r.

So the equation is 2r+15=14

Then subtract 15 from both sides, and the equation is: 2r=-1

Divide 2r by both sides and the answer is r=-1/2 or -.5

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