QUESTION: Math problem: Solve 0 = 6*k - 2*k + 4 for k.
ANS: -1
QUESTION: Math problem: Solve -545*w - 9 = -548*w for w.
ANS: 3
QUESTION: Math problem: Solve 633*k + 56600 = -2197*k for k.
ANS: -20
QUESTION: Math problem: Solve -45*u - 3719 - 922 = -58*u - 78*u for u.
ANS:
51