Question: What is the solution?

Solve 2585*v = 2242*v + 1029 for v.

Answer: 3

Question: What is the solution?

Solve -14*l + 7*l = -14*l - 70 for l.

Answer: -10

Question: What is the solution?

Solve -41*u - 743 = -374 for u.

Answer: -9

Question: What is the solution?

Solve 0 = -u + 15 - 10 for u.

Answer:
5