Question

Four less than nine times a number is one hundred twenty-two. Find the original number.

Answer 1

The number is
`14`

Explanation:

Denote the original number by z. The expression "Four less than nine times a number is one hundred twenty-two" can be rewritten in an equation.

Our number is z, then the left hand side of the equation is 9z-4.

The right side of the equation is 122. Then the complete equation is
`9z-4=122`. Add 4 in both sides to get
`9z=122+4=126`. Now, divide by 9 in both sides to get
`z=(126)/(9)=14`