Question

the sum of 2 numbers 13 and difriece is 7

Answer 1

Answer:

13 + 7 = 20

20 / 2 = 10

10 + 3 = 13

10 - 3 = 7

3 and 10

Answer 2

Answer:

x + y = 13

x - y = 7

add both ea.

2x = 20

x = 10

y = 3.