Consider the equation ;
[tex]{:\implies \quad \sf -11-2\dfrac{1}{4}n=-\dfrac78}[/tex]
[tex]{:\implies \quad \sf -11-\dfrac{9}{4}n=-\dfrac78}[/tex]
After some manipulations in both sides, can further written as ;
[tex]{:\implies \quad \sf \dfrac{9}{4}n=\dfrac{7}{8}-11}[/tex]
[tex]{:\implies \quad \sf \dfrac{9}{4}n=\dfrac{7-88}{8}}[/tex]
[tex]{:\implies \quad \sf \dfrac{9}{4}n=-\dfrac{81}{8}}[/tex]
[tex]{:\implies \quad \sf n=-\dfrac{81}{8}\times \dfrac{4}{9}}[/tex]
[tex]{:\implies \quad \bf \therefore \quad \underline{\underline{n=-\dfrac92}}}[/tex]
This is the required answer
