What is the measure of ∠GJH?\
A. x = 19
B. x = 23
C. x = 48
D. x = 56

Answer:
x = 19
Step-by-step explanation:
x + (x + 4) + (3x - 9) = 90°
Combine like terms
5x - 5 = 90
Add 5 on both sides
5x = 95°
Divide 5 on both sides
x = 19