Question

Solve: f - 6 < 5 AND f - 4 > (or equal to) 2

Answer 1

$\bf \begin{cases} f-6<5\implies &f<11 \\\\\ f-4\ge 2\implies &f\ge 6 \end{cases} ~\hspace{5em}\stackrel{\textit{and we can also write it as triplet}}{6\le f < 11}$