Write down the solution for this math problem: Solve 17*o - 774 = -57*o + 780 for o.
answer: 21

Write down the solution for this math problem: Solve -4*l + 3 = 7 for l.
answer: -1

Write down the solution for this math problem: Solve 46*a = 638 + 190 for a.
answer: 18

Write down the solution for this math problem: Solve -146 = 16*u - 576 - 130 for u.
answer:
35