Question: What is the solution?

Solve -149*a - 6*a = 9831 + 6444 for a.

Answer: -105

Question: What is the solution?

Solve 9*x - 24 = -4*x + 10*x for x.

Answer: 8

Question: What is the solution?

Solve 530*c + 1707*c = -6711 for c.

Answer: -3

Question: What is the solution?

Solve -177*j + 182*j = 30 for j.

Answer:
6