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Max discovered that if he subtracted 7 from his age and multiplied it by 7, he got the same answer as...

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Problem

Max discovered that if he subtracted 7 from his age and multiplied it
by 7, he got the same answer as subtracting 9 from his age and
multiplying it by 9.  How old is Max?

-- joseph mccann <jomac@globalnet.co.uk>
Show solution
    7(x-7)  = 9(x-9)
    7x - 49 = 9x - 81
    2x      = 32
     x      = 16
=>  Max is just old enough to get his driver's license and become a road
hazard here in the states. :^)

-- Craig Jones <CMJones@Microsoft.com>