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# Solve for r r/5+6/5=r/7=8/7?

solve for r

### 2 Answers

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- Jun AgrudaLv 710 years agoFavorite Answer
r/5 + 6/5 = r/7 + 8/7

7r + 42 = 5r + 40

2r = - 2

r = - 1

Answer: r = - 1

Checking:

- 1/5 + 6/5 = - 1/7 + 8/7

5/5 = 7/7

1 = 1

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