question: Teacher asked me this: Solve 4*c = -8*c + 6*c for c.
++++++++++
answer: 0
Solve -230*i - 38 = -78*i - 38 for i.
Solve this plz.

A: 0
QUESTION: Math problem: Solve 6643*o = 6012*o - 11358 for o.
ANS: -18
Q: What is the solution?
Solve -89*z + 478*z + 603*z = 49600 for z.

A: 50
Write down the solution for this math problem: Solve -5383*s - 2484*s = 393350 for s.
answer: -50
QUESTION: Math problem: Solve 2 - 7 = 9*z + 13 for z.
ANS:
-2