Question: What is the solution?

Solve 47 = 2*u + 39 for u.

Answer: 4

Question: What is the solution?

Solve -177*p = -703*p - 174*p + 11900 for p.

Answer: 17

Question: What is the solution?

Solve 10*f + 3*f + 315 = -32*f for f.

Answer: -7

Question: What is the solution?

Solve 22328 = 2662*k - 92138 for k.

Answer:
43