Question

sum of two numbers is 75.if one exceeds the other by 15,find the numbers.

Answer 1

Let the number be x
x+15=75
x=60
hope this would help u

Answer 2

let the number be x and y.
$x + y = 75 \\ x - y = 15$
add both equations
$2x = 90 \\ x = \frac{90}{2} \\ x = 45$
insert the value of x in any one of the equation
$45 + y = 75 \\ y = 75 - 45 \\ y = 30$
so the numbers are 45 and 30.