Question

The sum of two numbers is -25. if one number is 40, find the other numbers ?

Answer 1

Let the number be X.
A/Q X + 40 = -25
or X = -25 -40
therefore, X = -65

Answer 2

let 2 numbers be x,y
x+y=-25
where x=40
40+y=-25
y=-25-40
y=-65