QUESTION: Math problem: Solve 0 = -100*u + 12*u - 7885 + 15717 for u.
ANS: 89
QUESTION: Math problem: Solve 0 = -751*i + 742*i + 54 for i.
ANS: 6
QUESTION: Math problem: Solve -846*w = -732*w - 570 for w.
ANS: 5
QUESTION: Math problem: Solve -2*r - 49628 = -49694 for r.
ANS:
33