Question: What is the solution?

Solve -3218*o - 523*o - 1286298 = 3415*o + 3838*o for o.

Answer: -117

Question: What is the solution?

Solve 8*i - 26*i = 108 for i.

Answer: -6

Question: What is the solution?

Solve 214*a - 217*a = 15 for a.

Answer: -5

Question: What is the solution?

Solve -2 = 23*q - 21*q for q.

Answer:
-1