Question: What is the solution?

Solve 57420 = -1369*d + 2326*d for d.

Answer: 60

Question: What is the solution?

Solve 42*x + 90 = 24*x for x.

Answer: -5

Question: What is the solution?

Solve 18*x - 165*x - 879 = 1620 for x.

Answer: -17

Question: What is the solution?

Solve 3*w = -20 + 14 for w.

Answer:
-2