How many solutions are there to the equation below 4x-9(x-1)20-5x?

To solve the equation (4x - 9(x - 1)20 - 5x = 0), we first simplify it. This leads to (4x - 180 + 9x - 5x = 0), which simplifies to (8x - 180 = 0). Solving for (x), we find (x = 22.5). Therefore, there is exactly one solution to the equation.