Answer:
x = 5
Step-by-step explanation:
63° + (23x + 2)° = 180° (same-side interior angles theorem)
63 + 23x + 2 = 180
Add like terms
63 + 2 + 23x = 180
65 + 23x = 180
65 + 23x - 65 = 180 - 65
23x = 115
23x/23 = 115/23
