Question

Five times a number is 28 greater than the product of the number and -2. Find the number

Answer 1

4

Explanation:

Let the unknown number be x

Five times the number is expressed as 5x

28 greater than the product of the number and -2 is expressed as;

28 + (-2x)

Equating both expressions

5x = 28 + (-2x)

5x = 28 - 2x

5x+2x = 28

7x = 28

x = 28/7

x = 4

Hence the number is 4