Question

The sum of the digits in a two-digit whole number is 9. The number in the

ones place is 3 less than the number in the tens place. Find the two-digit
number

Answer 1

63

Explanation:

x = # in ones place

y = # in tens place

x + y = 9

y = x - 3

substitute:

x + x-3 = 9

2x - 3 = 9

2x = 12

x = 6

y = 3