Question:
Solve 135*n = 146*n - 136*n + 5375 for n..

Answer:
43

Question:
Solve 2206*u - 2466*u + 19500 = 0 for u..

Answer:
75

Question:
Solve -20*y + 10 = 130 for y..

Answer:
-6

Question:
Solve 12*n + 7334 = 398*n for n..

Answer:
19