Question:
Solve 7038 = -278*a + 692*a for a..

Answer:
17

Question:
Solve 34 - 287 = -72*w + 395 for w..

Answer:
9

Question:
Solve 33 = -7*t + 18*t for t..

Answer:
3

Question:
Solve 17760 = 147872*o - 147632*o for o..

Answer:
74