Question:
Solve 7*i + 14 - 42 = 0 for i..

Answer:
4

Question:
Solve 206414*s - 4 = 206415*s for s..

Answer:
-4

Question:
Solve -93*k = -462*k - 430 - 308 for k..

Answer:
-2

Question:
Solve -2427 = 57*i + 309 for i..

Answer:
-48