Question: What is the solution?

Solve -8666*i + 271853 = -386763 for i.

Answer: 76

Question: What is the solution?

Solve 29 = -4*y + 21 for y.

Answer: -2

Question: What is the solution?

Solve 10*v - 1694*v = 2781 + 3955 for v.

Answer: -4

Question: What is the solution?

Solve -13*a + 10*a + 140 = -17*a for a.

Answer:
-10