QUESTION: Math problem: Solve 131*w + 2128 = -21*w for w.
ANS: -14
QUESTION: Math problem: Solve 0 = -81*j + 68*j - 117 for j.
ANS: -9
QUESTION: Math problem: Solve -9*u + 27 = -0*u for u.
ANS: 3
QUESTION: Math problem: Solve 6 = -160*z + 157*z for z.
ANS:
-2