Question

One number is 8 times another number. The numbers are both positive and have a difference of 70. Find the numbers.

Which of the following equations could be used to solve the problem?

8 x - x = 70
x - 8 x = 70
x - 8 = 70

Answer 1

8x - x = 70

Explanation:

x equals 10 because,

8 x 10 = 80

and x = 10, so 80 - 10 = 70.