Question:
Solve -23*f + 261 = -5*f + 11*f for f..

Answer:
9

Question:
Solve 547*u + 62328 = -961*u - 32676 for u..

Answer:
-63

Question:
Solve -3075*i + 1388 + 276 = -2971*i for i..

Answer:
16

Question:
Solve -3*q + 12 = 15 for q..

Answer:
-1