Question Number 189000 by 073 last updated on 10/Mar/23
Answered by mr W last updated on 10/Mar/23
$${x}^{\mathrm{2}} −\mathrm{7}{x}<\mathrm{0} \\ $$$$\Rightarrow\mathrm{0}<{x}<\mathrm{7},\:\neq\mathrm{2} \\ $$$$\Rightarrow{x}=\mathrm{1},\mathrm{3},\mathrm{4},\mathrm{5},\mathrm{6} \\ $$$$\Rightarrow{n}=\mathrm{5} \\ $$