Question: What is the solution?

Solve -63*j - 414 - 909 = 0 for j.

Answer: -21

Question: What is the solution?

Solve 0 = 17*y - 15*y - 2 for y.

Answer: 1

Question: What is the solution?

Solve -57*t + 88*t + 85*t = -464 for t.

Answer: -4

Question: What is the solution?

Solve 0 = 166*f - 175*f - 9 for f.

Answer:
-1