QUESTION: Math problem: Solve -2*z = 10 - 2 for z.
ANS: -4
QUESTION: Math problem: Solve 12*b - 12 = 16*b for b.
ANS: -3
QUESTION: Math problem: Solve 0 = 80*c - 82*c + 2 for c.
ANS: 1
QUESTION: Math problem: Solve 493*v + 419*v - 255 = 861*v for v.
ANS:
5