Question:
Solve -804*b + 152 = -766*b for b..

Answer:
4

Question:
Solve 478*k - 6290 + 6951 = -20849 for k..

Answer:
-45

Question:
Solve 176*j + 289*j + 142 = 323*j for j..

Answer:
-1

Question:
Solve 290*m = 314*m - 168 for m..

Answer:
7