Write down the solution for this math problem: Solve 0 = -6*u + 190 - 178 for u.
answer: 2

Write down the solution for this math problem: Solve 227*o + 308*o + 280*o - 12305 = 922*o for o.
answer: -115

Write down the solution for this math problem: Solve 105*o - 54*o = -38*o - 5963 for o.
answer: -67

Write down the solution for this math problem: Solve 33*w - 46 = -0*w + 10*w for w.
answer:
2