Answer:
How do You answer question?
Step-by-step explanation:
108 = (3x + 4) + (8x - 28). Combine like terms.
108 = 11x - 24. Add 24 to each side.
132 = 11x. Divide each side by 11.
12 = x. Plug 12 into the equation for angle AOB
3(12) + 4
AOB = 40°
