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Thread: [Resolved] Help with Algebra Problem

  1. Sep 3rd, 2004, 08:38 PM #1
    The Hobo
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    [Resolved] Help with Algebra Problem

    This is a question from a homework assignment:

    Show that: 5n + 4*5n = 5n+1

    I've been trying to figure it out for about 15 minutes without any luck. Since this is homework, I don't want someone to just give me the answer, but if anyone has an hints that could push me in the right direction, it would be appreciated.
    Last edited by The Hobo; Sep 4th, 2004 at 03:13 PM.
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  2. Sep 4th, 2004, 10:18 AM #2
    alkatran
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    5^n + 4*5^n = 5^(n+1)
    1*5^n + 4*5^n = 5^(n+1)

    Need any more?
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  3. Sep 4th, 2004, 03:09 PM #3
    The Hobo
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    ah, I didn't even think to do that. So, incase anyone is as dumb as me and wants to know:

    5n+4*5n = 5n+1
    1*5n+4*5n = 5n+1
    (1+4)*5n = 5n+1
    5*5n = 5n+1
    5n+1 = 5n+1

    Can't believe I didn't see it sooner. Thanks a lot, man.
    Last edited by The Hobo; Sep 4th, 2004 at 03:12 PM.
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