Question:
Solve -14*m - 445 - 580 = -39*m for m..

Answer:
41

Question:
Solve 14*u - 358 = -3*u - 18 for u..

Answer:
20

Question:
Solve 6*w + 7 = -11 for w..

Answer:
-3

Question:
Solve 1621*z - 602*z = -1153*z - 19548 for z..

Answer:
-9