Question

A number is multiplied by 8, and that product is added to 2. The sum is equal to the product of 2 and 21. Find the number

Answer 1

The number is 5

Explanation:

A number is multiplied by 8 = 8x

8x + 2

8x + 2 = 42 Subtract 2 from both sides

- 2 -2

8x = 40 Divide by 8

x = 40/8

x = 5