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Popular Word Problems >

twice the difference of a number and 8 is 7

Solution

tw i ce t h e d i ff ere n ce o f a n u mb er an d 8 i s 7

Solution

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

Solution steps

Represent the number with

x

A.T.Q.:

2 (x - 8) = 7

Solve for

x, 2 (x - 8) = 7 : x = \frac{23}{2}

Convert improper fractions to mixed numbers:

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

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

Popular Examples

twice the difference of a number and 8 is 2 The retail price of an office chair is 270. The chair was marked up 125%. What was the wholesale cost of the chair?what number is 75% of 125 Twelve less than five times a number is 63.The diameter of a circle is 4 in. Find its area in terms of