Question:
Solve 17034 = 146*s + 283*s + 72*s for s..

Answer:
34

Question:
Solve 168*n - 6020 = -453*n + 19*n for n..

Answer:
10

Question:
Solve 6*a - 3520 = 145*a + 21*a for a..

Answer:
-22

Question:
Solve 169 = 12*a + 205 for a..

Answer:
-3