Write down the solution for this math problem: Solve 6 - 25 = 50*x + 81 for x.
answer: -2

Write down the solution for this math problem: Solve 181521*b - 181503*b - 756 = 0 for b.
answer: 42

Write down the solution for this math problem: Solve 64*s - 8931 = -8483 for s.
answer: 7

Write down the solution for this math problem: Solve 0 = 978*a + 38553 - 101041 - 53894 for a.
answer:
119