Solve for N: 7!8!9!/7!+8!+9!=8!N!/9
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Originally Posted by rubytuesday Solve for N: 7!8!9!/7!+8!+9!=8!N!/9 noting the lack of parentheses in your equation, do you really mean this ... ???
Last edited by skeeter; November 15th 2011 at 06:02 PM.
Hello, rubytuesday! We have: . . . Note that: . So we have: . . . . . . . . . . . Multiply by
Thank You!
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