Question: What is the solution?

Solve -2 = -47*c - 378 for c.

Answer: -8

Question: What is the solution?

Solve -20558*a - 153776 + 1973504 = -893928 for a.

Answer: 132

Question: What is the solution?

Solve 90 - 83 = f for f.

Answer: 7

Question: What is the solution?

Solve 35*u - 330 + 85 = 0 for u.

Answer:
7