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Popular Word Problems >

Write as a mathematical expression and solve.The product of 3 and a number subtracted from 16 is 7. Find the number.

Solution

W r i t e a s a ma t h e ma t i c a l e x p ress i o n an d so l v e . T h e p ro d u c t o f 3 an d a n u mb er s u b t r a c t e d f ro m 16 i s 7. F in d t h e n u mb er .

Solution

The number : 7 \frac{2}{3}

Solution steps

Represent the number with

x

A.T.Q.:

3 x - 16 = 7

Solve for

x, 3 x - 16 = 7 : x = \frac{23}{3}

Convert improper fractions to mixed numbers:

\frac{23}{3} = 7 \frac{2}{3}

The number : 7 \frac{2}{3}

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