Question: What is the solution?

Solve 8*d = 44896 - 45184 for d.

Answer: -36

Question: What is the solution?

Solve 12*c - 394 + 88 = -141*c for c.

Answer: 2

Question: What is the solution?

Solve 136*r = 71*r + 81*r - 176 for r.

Answer: 11

Question: What is the solution?

Solve -388 = 49*c + 4 for c.

Answer:
-8