Question

sum and difference of two numbers is 15 and 2 respectively then find the two numbers​

Answer 1

x+y=15

×-y=2

add both equations...

2x=17

x=8.5

x+y=15

8.5+y=15

y=6.5

Answer 2

let the no be x&y

x+y = 15

x-y = 2

2x = 17

x = 17/2

17/2 +y = 15

y = 15-17/2

y = 13/2