When a fifth of a certain number is added to 3,the result is 17. What is the number

Answer 1

x = number

1 / 5 x + 3 = 17

Multiply both sides by 5.

x + 15 = 85

Subtract 15 to both sides.

x = 70

Check result.

1 / 5 x + 3 = 17

( 1 / 5 ) • 70 + 3 = 70 / 5 + 3 = 14 + 3 = 17