Question:
Solve -69*u - 70*u = 22*u - 4025 for u..

Answer:
25

Question:
Solve -143*i + 146*i + 15 = 0 for i..

Answer:
-5

Question:
Solve -1275*v = 71620 + 53330 for v..

Answer:
-98

Question:
Solve 114889 = -20*h + 114269 for h..

Answer:
-31