Answer:
[tex]{ \tt{2 \frac{1}{2}x + \frac{5}{6} }}[/tex]
when x Is -1
[tex] = { \tt{(2 \frac{1}{2} \times - 1) + \frac{5}{6} }} \\ \\ = { \tt{ -1 \frac{2}{3} }}[/tex]
