Answer:
x = 8
Step-by-step explanation:
13x - 1 = 29 + 10x - 6 (Exterior angle of a triangle is equal to sum of its two opposite interior angles)
Collect like terms
13x - 10x = 29 - 6 + 1
3x = 24 Divide both sides by 3
x = 24 / 3
