Question:
Solve -407*n - 440*n = 162*n - 8072 for n..

Answer:
8

Question:
Solve 0 = -2*t + 1242 - 1222 for t..

Answer:
10

Question:
Solve 72036*b + 1104 = 71898*b for b..

Answer:
-8

Question:
Solve 0 = 5*c - 7 + 17 for c..

Answer:
-2