QUESTION: Math problem: Solve 11*z = 120817 - 120399 for z.
ANS: 38
QUESTION: Math problem: Solve -7972*d + 7889*d = 3428 - 440 for d.
ANS: -36
QUESTION: Math problem: Solve -14*q = 9*q + 18*q + 820 for q.
ANS: -20
QUESTION: Math problem: Solve 19*f - 12 = 13*f for f.
ANS:
2