If $x \in N,$ then solve following equations:\frac{1}{6 !}+\frac{1}{7 – InterviewSolution

1.	If $x \in N,$ then solve following equations:\frac{1}{6 !}+\frac{1}{7 !}=\frac{x}{8 !}
Answer» 1/6! + 1/(7×6!) = x/(8×7×6!) 1/6! (1+1/7)= x/(8×7×6!) 8/7 = x/56 so x=(56×8)/7 = 64

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