Answer:
(d) x = 31
Explanation:
(2x)° + (2x - 7)° + 63° = 180°
4x - 7 + 63 = 180
4x = 180 - 56
4x = 124
x = 31
D) 31
2x-7+2x+63=180
4x+56=180
4x=180-56
4x=124
x=124/4
x=31
4.4m questions
5.7m answers