Task: Question Answering
Input (English): Let z(p) = 5*p**2 - p. Suppose 28 = 2*r + 3*v, -2*r + 4*v - 28 = -4*r. Let s be (-1)/(-4) - r/(-8). What is the smallest common multiple of 4 and z(s)?
Output (English): 36