Question:
Solve -26*k + 118 = -93 - 309 for k..

Answer:
20

Question:
Solve 123 + 66 = -189*k for k..

Answer:
-1

Question:
Solve -81*m - 213*m = -18*m - 2760 for m..

Answer:
10

Question:
Solve -538*q + 127*q + 10686 = 0 for q..

Answer:
26