Write down the solution for this math problem: Solve 2085 = -60*u + 585 for u.
answer: -25

Write down the solution for this math problem: Solve 274*b - 24*b + 3750 = 0 for b.
answer: -15

Write down the solution for this math problem: Solve -519*j - 402*j + 15114 = -107*j + 560*j for j.
answer: 11

Write down the solution for this math problem: Solve 6 = 2*u + 4*u for u.
answer:
1