Write down the solution for this math problem: Solve -9*v + 20*v - 44 = 0 for v.
answer: 4

Write down the solution for this math problem: Solve 0 = -3*m + 18 - 18 for m.
answer: 0

Write down the solution for this math problem: Solve 0 = 56*r + 20*r - 40*r + 60*r + 288 for r.
answer: -3

Write down the solution for this math problem: Solve 14 - 20 + 48 = 7*u for u.
answer:
6