question: Teacher asked me this: Solve -28*k + 408 = 87 - 211 for k.
++++++++++
answer: 19
Solve -9*b + 20*b - 33 = 0 for b.
Solve this plz.

A: 3
QUESTION: Math problem: Solve 12 = 3*f - 0 for f.
ANS: 4
Q: What is the solution?
Solve 26*f = 25 - 51 for f.

A: -1
Write down the solution for this math problem: Solve 0 = 11*d - 3*d - 40 for d.
answer: 5
QUESTION: Math problem: Solve -5*u - 21 + 46 = 0 for u.
ANS:
5