SOLUTION: { 1/5 x + 1/7y = 23/5 1/7x + 1/5x = 13/5 What is x + y

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Question 1008176: { 1/5 x + 1/7y = 23/5
1/7x + 1/5x = 13/5

What is x + y
Found 2 solutions by CubeyThePenguin, MathTherapy:
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
Add both equations:

12x/35 + 12y/35 = 36/5

x + y = (36/5)/(12/35) = 21

Answer by MathTherapy(10555) About Me  (Show Source):
You can put this solution on YOUR website!

{ 1/5 x + 1/7y = 23/5
1/7x + 1/5x = 13/5

What is x + y
Depends on what the 2nd equation is - matrix%281%2C3%2C+%281%2F7%29x+%2B+%281%2F5%29x%2C+%22=%22%2C+13%2F5%29, or something else!