help asap i will give brainly to first person to anwser

Answer:
The answer is 8
Step-by-step explanation:
7x-9=4x+15
7x-4x=15+9
3x=24
x=24/3
x=8
pls mark BRAINLIEST
Answer:
m<ABC=<7x-9=7×8-9=47° is your answer
Step-by-step explanation:
4x+15=7x-9 vertically opposite angle
15+9=7x-4x
x=24/3=8