I found the first part but I can’t seem to get the second part. Help please
Answer:
-5 < x < 9
Step-by-step explanation:
5x + 15 > 0
5x > -15
x > -5
third side: 23 > 21
∴ ∠ 42° > ∠ (3x + 15°)
42 > 3x + 15
3x < 42 - 15
3x < 27
x < 9