Question: What is the solution?

Solve -36918705*r - 11610 = -36918795*r for r.

Answer: 129

Question: What is the solution?

Solve 16*f + 21*f + 2*f = 195 for f.

Answer: 5

Question: What is the solution?

Solve -5*n + 7 - 2 - 90 = 0 for n.

Answer: -17

Question: What is the solution?

Solve -50867*f = -50884*f + 323 for f.

Answer:
19