Question:
Solve 99421*t = 99481*t - 120 for t..

Answer:
2

Question:
Solve -21*t + 385 - 49 = 0 for t..

Answer:
16

Question:
Solve 1511 = 90*n + 171 + 80 for n..

Answer:
14

Question:
Solve -1027*w + 481*w - 649*w - 65495 + 2160 = 0 for w..

Answer:
-53