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February 1, 2015

February 1, 2015

Posted by **mutaz** on Sunday, July 10, 2011 at 6:48pm.

- algebra -
**bobpursley**, Sunday, July 10, 2011 at 6:52pmlet the number be MN digits,

2M+5N=19

10N+M+54=10M+N

2M+5N=19

9N-9M=-54

check those equations.

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