Question: What is the solution?

Solve 29*c = 22*c - 7 for c.

Answer: -1

Question: What is the solution?

Solve 23 = -14*n - 19 for n.

Answer: -3

Question: What is the solution?

Solve 0 = 52*j - 120759 + 122163 for j.

Answer: -27

Question: What is the solution?

Solve 87*d - 38 = 95*d - 158 for d.

Answer:
15