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Popular Word Problems >

Twice the difference of a number and 9 equals 5.

Solution

Tw i ce t h e d i ff ere n ce o f a n u mb er an d 9 e q u a l s 5.

Solution

The number : 11 \frac{1}{2}

Solution steps

Represent the number with

x

A.T.Q.:

2 (x - 9) = 5

Solve for

x, 2 (x - 9) = 5 : x = \frac{23}{2}

Convert improper fractions to mixed numbers:

\frac{23}{2} = 11 \frac{1}{2}

The number : 11 \frac{1}{2}

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