secret13 secret13

24-12-2014
Mathematics

contestada

The product of 9 and a number is 12 less than three times that number.

What is the number?

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konrad509 konrad509

24-12-2014

x - a number

[tex]9x=3x-12|-3x\\ 6x=-12|:6\\ x=-2 [/tex]

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