Write down the solution for this math problem: Solve -20*v + 94 = -26 for v.
answer: 6

Write down the solution for this math problem: Solve -36*u = 78*u + 6*u - 1080 for u.
answer: 9

Write down the solution for this math problem: Solve 2400*z + 374*z = -1138*z + 250368 for z.
answer: 64

Write down the solution for this math problem: Solve 1507*s = 57806 + 5488 for s.
answer:
42