question: Teacher asked me this: Solve -2*x - 31 = -39 for x.
++++++++++
answer: 4
Solve -14*r = -12*r + 4 for r.
Solve this plz.

A: -2
QUESTION: Math problem: Solve 7782*y - 13014 = 8505*y for y.
ANS: -18
Q: What is the solution?
Solve -689*r + 173982 = -930*r - 1385*r for r.

A: -107
Write down the solution for this math problem: Solve -4654 = -68*u - 2342 for u.
answer: 34
QUESTION: Math problem: Solve -11*s = -13*s + 6 for s.
ANS:
3