Solve by Substitution. \[ \left\{\begin{array}{l} x-3 y=8 \\ -9 y=24-3 x \end{array}\right. \] No solution Infinite number of solutions

Step 1 ：The system of equations is given as \(\begin{cases} x-3y=8 \\ -9y=24-3x \end{cases}\)

Step 2 ：First, we solve the second equation for x, which gives us \(x = 3y + 8\)

Step 3 ：We then substitute this expression into the first equation, which gives us an equation in terms of y only

Step 4 ：However, the solution for y is an empty list, which means that there is no solution for y that satisfies the equation

Step 5 ：This implies that the system of equations has no solution

Step 6 ：Final Answer: The system of equations has \(\boxed{\text{No solution}}\)