Answer:
x = 8 , ∠ B = 70°
Step-by-step explanation:
∠ A and ∠ B are alternate exterior angles and are congruent, that s
8x + 6 = 4x + 38 ( subtract 4x from both sides )
4x + 6 = 38 ( subtract 6 from both sides )
4x = 32 ( divide both sides by 4 )
x = 8
Then
∠ B = 4x + 38 = 4(8) + 38 = 32 + 38 = 70°
