Write down the solution for this math problem: Solve 3426 = 159*z + 1448 - 2792 for z.
answer: 30

Write down the solution for this math problem: Solve 0 = 5*b - 1 + 21 for b.
answer: -4

Write down the solution for this math problem: Solve 3*i - 5 - 7 = 0 for i.
answer: 4

Write down the solution for this math problem: Solve 62*a = 27*a - 55*a + 4500 for a.
answer:
50