question: Teacher asked me this: Solve 17*f - 324 = 9*f - 10*f for f.
++++++++++
answer: 18
Solve 210*u = 195*u + 105 for u.
Solve this plz.

A: 7
QUESTION: Math problem: Solve -12272*r = -11691*r + 15687 for r.
ANS: -27
Q: What is the solution?
Solve 0 = -6*b - 2*b + 32 for b.

A: 4
Write down the solution for this math problem: Solve z - 10 = -4*z for z.
answer: 2
Q: Solve:
Solve -16119*n + 12678*n = 72261 for n.

A:
-21