Question:
Solve -11*n + 5*n = -6 for n..

Answer:
1

Question:
Solve -42 = 46*d + 50 for d..

Answer:
-2

Question:
Solve -16 = -38*o - 130 for o..

Answer:
-3

Question:
Solve -91*q - 67*q - 1701 = 31*q for q..

Answer:
-9