If $\frac{1}{8!}+\frac{1}{9 imes 8!}=\frac{x}{10!}$ then $x$ is

Question

If $\frac{1}{8!}+\frac{1}{9 	imes 8!}=\frac{x}{10!}$ then $x$ is

Professor PC Thomas Classes · Answer

Multiply by $10! \implies 10 	imes 9 + 10 = x \implies x = 100$.