Question:
Solve -14*q = -15*q + 4 for q..

Answer:
4

Question:
Solve -3*n + 0*n = -2*n for n..

Answer:
0

Question:
Solve -10 + 25 = -5*j for j..

Answer:
-3

Question:
Solve 0 = -551*n + 90*n + 475 - 2319 for n..

Answer:
-4