Homework Help: algebra

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

A number consists of two digits. The sum of twice the tens digit an 5 times the units digit is 19. If the digits are reversed, the new number is 54 less than the original number. Find the number

algebra - bobpursley, Sunday, July 10, 2011 at 6:52pm
let 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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