Task: Question Understanding
Input (English): Suppose 8 = d + 3. Suppose -5*f = 4*h - 3, -5*h = -0*f - d*f - 15. Let u = 3 + h. Solve 3*o + 4*a = -1, u*o + 2*a = 5 - 2 for o.
Output (English): algebra