Question:
Solve -2*m - 17 = -5 for m..

Answer:
-6

Question:
Solve 261*w + 20405 = -241*w + 8*w + 123*w for w..

Answer:
-55

Question:
Solve 2744*i - 2716*i + 30 = -138 for i..

Answer:
-6

Question:
Solve 1316 + 544 = -270*k + 177*k for k..

Answer:
-20