Question: What is the solution?

Solve -107 = -31*u + 79 for u.

Answer: 6

Question: What is the solution?

Solve -101*u = -891 - 3097 + 958 for u.

Answer: 30

Question: What is the solution?

Solve 4646 = -110*j + 105*j - 41*j for j.

Answer: -101

Question: What is the solution?

Solve -7*y + 1632 = -111*y + 2*y for y.

Answer:
-16