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01-12-2015
Mathematics

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the difference between a number divided by 3 and 4 is 20

Respuesta :

01-12-2015

Set the number to x.

[tex]\frac{x}{3}-\frac{x}{4}=20[/tex]
[tex]\frac{4x}{12}-\frac{3x}{12}=20[/tex]
[tex]\frac{x}{12}=20[/tex]
[tex]x=240[/tex]

Thus, the number is 240.

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