Respuesta :

Let the two numbers be x and y.

The sum of two numbers is 20. So we can write:

x + y = 20

The difference of two numbers is 14. So we can write:

x - y = 14

Adding the two equations, we get:

2x = 34
⇒ 
x = 17

Using the value of x in 1st equation we get:

17 + y = 20
⇒
y = 3

So the two numbers are 17 and 3.

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