QUESTION: Math problem: Solve -15*b + 190 + 289 - 344 = 0 for b.
ANS: 9
QUESTION: Math problem: Solve 4*w + 420 = 440 for w.
ANS: 5
QUESTION: Math problem: Solve 0 = 633*h - 640*h - 84 for h.
ANS: -12
QUESTION: Math problem: Solve 9*f + 14*f = -0*f + 138 for f.
ANS:
6