Question: What is the solution?

Solve -208*d + 425*d + 926 = -607 + 14 for d.

Answer: -7

Question: What is the solution?

Solve -646*g + 4507 + 3720 = -2755 for g.

Answer: 17

Question: What is the solution?

Solve 62*i - 42*i = 20 for i.

Answer: 1

Question: What is the solution?

Solve -165 = 15*c - 75 for c.

Answer:
-6