Question:
Solve -3714*z + 3914*z - 7400 = 0 for z..

Answer:
37

Question:
Solve 0 = 37*n - 28*n - 72 for n..

Answer:
8

Question:
Solve -3*m - 49 = -43 for m..

Answer:
-2

Question:
Solve 7620*w = 7662*w + 1344 for w..

Answer:
-32