the sum of two number is 25. one of the number exceeds the other by 9. fin d the number

1 answer

a = first number

b = second number

b = a + 9

a + b = 25

a + a + 9 = 25

2 a + 9 = 25 Subtract 9 to both sides

2 a + 9 - 9 = 25 - 9

2 a = 16 Divide both sides by 2

a = 16 / 2 = 8

b = a + 9 = 8 + 9 = 17

First number = 8

Second number 17