Task: Question Answering
Input (English): Suppose 3*u + 12 = o, 8 = -2*o - 0*u - 2*u. Let l(w) = -5 + 2*w**3 - 3*w**3 + 0*w + o*w**3 - 10*w**2 - w. What is the units digit of l(-10)?
Output (English): 5