QUESTION: Math problem: Solve 56*b - 38*b = -180 for b.
ANS: -10
QUESTION: Math problem: Solve -906*v + 216241 = 473*v + 1531*v + 6721 for v.
ANS: 72
QUESTION: Math problem: Solve -19603*x + 19776*x + 10034 = 0 for x.
ANS: -58
QUESTION: Math problem: Solve -66*z = -21 + 16 + 137 for z.
ANS:
-2