Question:
Solve 91*p = 97*p - 18 for p..

Answer:
3

Question:
Solve -10*t + 85*t + 124*t - 3781 = 0 for t..

Answer:
19

Question:
Solve -12*t + 20 = 44 for t..

Answer:
-2

Question:
Solve -34*d + 3 = 6*d - 197 for d..

Answer:
5