Question

what are those two numbers whose sum is 58 and difference is 28 ....with 1 variable

Answer 1

x+y=58
x-y=28

x=58-y

x-y=28
58-y-y=28
-2y=-30
y=30/2
y=15

now put value of y in both equation

Answer 2

Let the two numbers be x and 58-x
28-x=58-x
x+x=58-28
2x=30
x=30/2
x=15
So, 58-x= 58-15
=43
Two numbers are 15 and 43