Answer: 5
Step-by-step explanation:
[tex]\frac{10}{24} = \frac{x}{3x - 3} \\\\ 24x = 10.(3x - 3) \\\ 24x = 30x - 30 \\\ 24x - 30x = - 30 \\\ 6x = 30 \\\ x = 5[/tex]
I hope I helped you.