Answer:
∠ 1 = 25° , ∠ 2 = 155°
Explanation:
∠ 1 and ∠ 2 are a linear pair and sum to 180° , that is
x - 6 + 5x = 180
6x - 6 = 180 ( add 6 to both sides )
6x = 186 ( divide both sides by 6 )
x = 31
Then
∠ 1 = x - 6 = 31 - 6 = 25°
∠ 2 = 5x = 5 × 31 = 155°