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

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) (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) (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 - , or something else!
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