SOLUTION: Solve the equation (r/5)+(6/5)=(r/7)+(8/7)

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Question 71166This question is from textbook
: Solve the equation
(r/5)+(6/5)=(r/7)+(8/7) This question is from textbook

Answer by mathman409(67) About Me  (Show Source):
You can put this solution on YOUR website!
(r/5)+(6/5)=(r/7)+(8/7)
r/5+6/5=r/7+8/7
r+6=5r/7+40/7
7r+42=5r+40
7r+2=5r
2=5r-7r
2=-2r
r=-1