question: Teacher asked me this: Solve 5*u - 42 = -72 for u.
++++++++++
answer: -6
Solve -138*f - 1554*f = 3747 + 11481 for f.
Solve this plz.

A: -9
QUESTION: Math problem: Solve 4*z + 6*z = 2*z for z.
ANS: 0
Q: What is the solution?
Solve 7*b - 150 + 164 = 0 for b.

A: -2
Write down the solution for this math problem: Solve 132*k + 280*k - 58*k + 40*k = 23246 for k.
answer: 59
question: Teacher asked me this: Solve 0 = -21*s + 24*s + 3 for s.
++++++++++
answer:
-1