Question: What is the solution?

Solve -905*d - 645 = -862*d for d.

Answer: -15

Question: What is the solution?

Solve -14*w + 8398 - 16459 = -8747 for w.

Answer: 49

Question: What is the solution?

Solve 2411 = 65*w - 2965 + 761 for w.

Answer: 71

Question: What is the solution?

Solve 1034 = 82*x - 38*x - 138*x for x.

Answer:
-11