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Popular >

Twice the difference of a number and 7 is 9

Solution

Twice the difference of a number and 7 is 9

Solution

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

Solution steps

Represent the number with

x

A.T.Q.:

2 (x - 7) = 9

Solve for

x, 2 (x - 7) = 9 : 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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