QUESTION: Math problem: Solve -12 = -5*z + 11*z for z.
ANS: -2
QUESTION: Math problem: Solve 0 = -10*z + 24*z + 42 for z.
ANS: -3
QUESTION: Math problem: Solve 2 + 24 = -13*y for y.
ANS: -2
QUESTION: Math problem: Solve 2 - 7 = 9*z + 13 for z.
ANS:
-2