Question: What is the solution?

Solve 87*y + 71*y - 805 = 143 for y.

Answer: 6

Question: What is the solution?

Solve -5*a + 16*a + 31 - 108 = 0 for a.

Answer: 7

Question: What is the solution?

Solve -150 = 4033*m - 4018*m for m.

Answer: -10

Question: What is the solution?

Solve -516*s = -255*s + 335*s + 43508 for s.

Answer:
-73