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Popular >

The product of-9 and a number, increased by 15 is-7. Find the number.

Solution

The product of -9 and a number, increased by 15 is -7. Find the number.

Solution

The number : 2 \frac{4}{9}

Solution steps

Represent the number with

x

A.T.Q.:

(- 9) x + 15 = - 7

Solve for

x, (- 9) x + 15 = - 7 : x = \frac{22}{9}

Convert improper fractions to mixed numbers:

\frac{22}{9} = 2 \frac{4}{9}

The number : 2 \frac{4}{9}

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