Question: What is the solution?

Solve 69*x + 223*x + 423*x = -86*x + 28035 for x.

Answer: 35

Question: What is the solution?

Solve 4*j - 31 = -15 for j.

Answer: 4

Question: What is the solution?

Solve -173 = 3*a - 227 for a.

Answer: 18

Question: What is the solution?

Solve 0 = 47*q + 254 + 28 for q.

Answer:
-6