Answer:
I got x=15, Hope this helps!
Step-by-step explanation:
x=15
[tex] \frac{1}{3} \times (x + 9) = 8 \\ \frac{x}{3} + \frac{9}{3} = 8 \\ \frac{x}{3} + 3 = 8 \\ \frac{x}{3} = 8 - 3 \\ \frac{x}{3 } = 5 \\ x = 3 \times 5 \\ x = 15[/tex]