QUESTION: Math problem: Solve -21 = -11*c + 1 for c.
ANS: 2
QUESTION: Math problem: Solve -2832 = -65*m - 72*m + 19*m for m.
ANS: 24
QUESTION: Math problem: Solve -z + 325 - 321 = 0 for z.
ANS: 4
QUESTION: Math problem: Solve -4 = -24*b + 28*b for b.
ANS:
-1