Question:
Solve 2736*t - 8318 - 5026 = 2180*t for t..

Answer:
24

Question:
Solve -2074*r + 95592 = 202*r for r..

Answer:
42

Question:
Solve 0 = -25*u - 3*u + 25*u + 30 for u..

Answer:
10

Question:
Solve 30*z - 17*z = 13 for z..

Answer:
1