sidneygallegos sidneygallegos

25-08-2016
Mathematics

contestada

one third of a number is 12 less than the number itself?

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dalendrk dalendrk

28-08-2016

n-the number

[tex]\dfrac{1}{3}n=n-12\ \ \ \ |multiply\ both\ sides\ by\ 3\\\\n=3n-36\ \ \ \ \ |subtract\ 3n\ from\ both\ sides\\\\-2n=-36\ \ \ \ \ |divide\ both\ sides\ by\ (-2)\\\\n=18[/tex]

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