Question

so um whats the sum of two numbers is 9 and their difference is 7

Answer 1

Answer:

The numbers are 8 and 1.

Step-by-step explanation:

Let the numbers be x and y.

x + y = 9

x - y = 7

(x + y) + (x-y) = 9 + 7 = 16

x + y + x - y = 16

2x = 16

x = 16/2 = 8

y = 9 - x = 9 - 8 = 1