Dividing And Expressing Factorials

Number Theory Level 1

x!=11!+10!9! \large x! =\dfrac{11! + 10!}{9!}

Find the value of xx satisfying the equation above.

Notation:

!! denotes factorial. For example, 8!=1×2×3×⋯×88! = 1\times2\times3\times\cdots\times8 .

Ash R by Ash R
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