SOLUTION: the sum of one-third of any number, two-fifths of the same number equals to 400

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Question 1021184: the sum of one-third of any number, two-fifths of the same number equals to 400
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
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x=the number
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%281%2F3%29x%2B%282%2F5%29x=400
%285%2F15%29x%2B%286%2F15%29x=400
%2811%2F15%29x=400
x=6000%2F11
x=545.45
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Your statement is false. This will not work for "any number",
only for the number 545.45.
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