Question: What is the solution?

Solve -18*n - 37*n - 890 = 34*n for n.

Answer: -10

Question: What is the solution?

Solve 4*t - 6*t = 12 for t.

Answer: -6

Question: What is the solution?

Solve 57*u = 21*u + 324 for u.

Answer: 9

Question: What is the solution?

Solve -21*r = -35*r + 70 for r.

Answer:
5