twice a number is increased by one-third the same number. The result is 42. Find the number

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05-11-2015
Mathematics

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twice a number is increased by one-third the same number. The result is 42. Find the number

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XQueenX XQueenX · Answer 1 · 2015-11-05T12:35:17-05:00

XQueenX XQueenX

05-11-2015

x - the unknown number.

\(2x + \frac{1}{3} *x = 42 \\ \frac{6}{3} *x + \frac{1}{3} *x = 42 \\ \frac{7}{3} *x = 42 \\ x = 42 : \frac{7}{3} \\ x = 42 * \frac{3}{7} \\ x = \frac{126}{7} \\ x= 18\)

x = 18.

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