question: Teacher asked me this: Solve 19*r - 9*r + 50 = 0 for r.
++++++++++
answer: -5
Solve -10 = 2*a - 14 for a.
Solve this plz.

A: 2
QUESTION: Math problem: Solve -11*b = -9*b - 8 for b.
ANS: 4
Q: What is the solution?
Solve 0 = 122*q - 42*q - 480 for q.

A: 6
Write down the solution for this math problem: Solve 0 = -186*f + 1251 - 1065 for f.
answer: 1
QUESTION: Math problem: Solve -5706*r + 3898*r - 97492 = -59701 + 180977 for r.
ANS:
-121