Question: What is the solution?

Solve -39 = -11*s + 5 for s.

Answer: 4

Question: What is the solution?

Solve -27*a = 24*a + 279 + 690 for a.

Answer: -19

Question: What is the solution?

Solve -262 + 248 = -7*c for c.

Answer: 2

Question: What is the solution?

Solve 1505654*i - 1505801*i - 8967 = 0 for i.

Answer:
-61