Answer:
[tex]m\angle EFG=161^{\circ}, m \angle LMN=19^{\circ}[/tex]
Step-by-step explanation:
Supplementary angles add to 180 degrees, so:
[tex]3x+17+\frac{1}{2}x-5=180 \\ \\ 6x+34+x-10=360 \\ 7x+24=360 \\ \\ 7x=336 \\ \\ x=48 \\ \\ \implies m\angle EFG=161^{\circ}, m \angle LMN=19^{\circ}[/tex]
