Question

One number is 10 times another number. their difference is 72. what are the two numbers?

Answer 1

Lets 2 numbers are x and y
x = 10y
x - y = 72

substitute x = 10y into x - y = 72

10y - y = 72
9y = 72
 y = 8

x = 10y = 80

answer
2 numbers are 8 and 80

Answer 2

The answer is 80 and 8
. 8x10=80
80-8=72