Question: What is the solution?

Solve -74*q - 27*q - 463 - 1860 = 0 for q.

Answer: -23

Question: What is the solution?

Solve -49*k = -40*k + 18 for k.

Answer: -2

Question: What is the solution?

Solve -3 - 15 = -3*a for a.

Answer: 6

Question: What is the solution?

Solve 0 = 64*y + 57*y - 114*y - 91 for y.

Answer:
13