Question

the sum of two numbers is 72. their difference is 24.

Answer 1

Lets  x and y are the two numbers
so
x+y = 72
x-y = 24
------------subtract
2x = 48
  x = 24

x+y = 72
y = 72 - x
y = 72 - 24 = 48

answer
two numbers are 48 and 24