question: Teacher asked me this: Solve 31 = -4*u + 11 for u.
++++++++++
answer: -5
Solve 252*n = 106*n - 1314 for n.
Solve this plz.

A: -9
QUESTION: Math problem: Solve -7*k = 9*k + 64 for k.
ANS: -4
Q: What is the solution?
Solve 5211 - 1808 = -4380*w - 5357 for w.

A: -2
Write down the solution for this math problem: Solve 12*o - 8*o + 27 = -81 for o.
answer: -27
Problem: Math Problem
Solve 1432*d + 309*d - 27579 - 82335 = -3493*d for d.

A:
21