QUESTION: Math problem: Solve -22*r + 112 + 20 = 0 for r.
ANS: 6
QUESTION: Math problem: Solve 44*w = 17*w - 81 for w.
ANS: -3
QUESTION: Math problem: Solve 0 = 3718*x - 3721*x - 18 for x.
ANS: -6
QUESTION: Math problem: Solve -553*b + 191*b - 5430 = 0 for b.
ANS:
-15