Answer: x = 23 and y = -6.
Explanation:
Let x and y be the two numbers.
x + y = 17
x - y = 29
Adding the two equations, we get:
2x = 46
x = 23
Substituting 23 for x in the first equation, we get:
23 + y = 17
y = -6
Therefore, the two numbers are x = 23 and y = -6.