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06-07-2015
Mathematics

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What number is that, the treble of which, increased by 12, shall as much exceed 54 as that treble is less than 144?

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06-07-2015

x - the number

[tex]3x+12-54=144-3x \\ 3x-42=144-3x \\ 3x+3x=144+42 \\ 6x=186 \\ x=\frac{186}{6} \\ x=31[/tex]

The number is 31.

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