Answer:
x= 13; B= 119
Step-by-step explanation:
9x+2= 180-(5x-4)
=> x= 13
=> B= 9 x 13 + 2= 119
119°
(9x + 2)° + (5x - 4)° = 180°
14x - 2 = 180
14x = 182
x = 13
m∠B = [9(13) + 2]° = 119°
