question: Teacher asked me this: Solve -580*u + 358*u + 19422 = 857*u for u.
++++++++++
answer: 18
Solve -11 = -4*n + 9 for n.
Solve this plz.

A: 5
QUESTION: Math problem: Solve -238*f - 30 = -243*f for f.
ANS: 6
Q: What is the solution?
Solve -1961*r - 381 = -1910*r - 1809 for r.

A: 28
Write down the solution for this math problem: Solve 0 = -3*z - 437 + 452 for z.
answer: 5
Write down the solution for this math problem: Solve 0 = -28*k - 43456 + 43904 for k.
answer:
16