First start by subtracting:
50-8=42
the new equation is:
6x=42
then divide:
42/6=7
So the answer is:
x=7
Hope this helps!! :D
Answer:
I think it is the fourth one

Step-by-step explanation:
I hope that is useful for you :)
Answer:
D
Step-by-step explanation:
Let me know if it's correct