Question

find two numbers such thatone of them exceeds the other by 9 and their sum is 81​

Answer 1

Let the number be = X

The other number is = X + 9

Sum = 81

X + (X + 9) = 81

2X = 81 - 9

2X = 72

X = 36

X + 9 = 36 + 9

= 45