Question:
Solve 0 = -16*t - 5*t - 21 for t..

Answer:
-1

Question:
Solve 4779*i - 8 = 4777*i for i..

Answer:
4

Question:
Solve 276*o + 22087 = -728*o - 18*o - 9595 for o..

Answer:
-31

Question:
Solve 48*p - 919 = -492 + 53 + 192 for p..

Answer:
14