QUESTION: Math problem: Solve -16 = -5*q - 31 for q.
ANS: -3
QUESTION: Math problem: Solve 194*u - 3895 = -140*u + 129*u for u.
ANS: 19
QUESTION: Math problem: Solve -13*m + 2*m + 55 = 0 for m.
ANS: 5
QUESTION: Math problem: Solve 5*d + 2*d = 28 for d.
ANS:
4