Question

please answer me urgent​

Answer 1

let x & y be the numbers .

x + y = 42 .....(1)

x - y = 12 .......(2)

from eq 2 , we get ,

x = 12 + y ..... (3)

now sub eq 3 in eq 1 , we get

12 + y + y = 42

2y = 42 - 12

2y = 30

y = 15 .

then sub y = 15