QUESTION: Math problem: Solve 647 = 185*f - 5643 for f.
ANS: 34
QUESTION: Math problem: Solve -9 = -107*z + 104*z for z.
ANS: 3
QUESTION: Math problem: Solve 11*x + 4 = -7 for x.
ANS: -1
QUESTION: Math problem: Solve -130*p - 371*p = 3507 for p.
ANS:
-7