## Trigonometry (10th Edition)

$80^{\circ}$ and $100^{\circ}$
6x - 4 + 8x - 12 = $180^{\circ}$ 14x - 16 = $180^{\circ}$ 14x = $196^{\circ}$ x = 14 6x - 4 = 80$^{\circ}$ and 8x - 12 = 100$^{\circ}$