QUESTION: Math problem: Solve 0 = 32*u + 21*u - 159 for u.
ANS: 3
QUESTION: Math problem: Solve -3*z + 6 = -0*z for z.
ANS: 2
QUESTION: Math problem: Solve 3501*b - 81703 - 206185 + 35816 = 0 for b.
ANS: 72
QUESTION: Math problem: Solve -700*s + 85*s = 3782 + 1753 for s.
ANS:
-9