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Popular Word Problems >

twice the difference of a number and 5 equals 7

Solution

tw i ce t h e d i ff ere n ce o f a n u mb er an d 5 e q u a l s 7

Solution

The number : 8 \frac{1}{2}

Solution steps

Represent the number with

x

A.T.Q.:

2 (x - 5) = 7

Solve for

x, 2 (x - 5) = 7 : x = \frac{17}{2}

Convert improper fractions to mixed numbers:

\frac{17}{2} = 8 \frac{1}{2}

The number : 8 \frac{1}{2}

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