Question:
Solve 0 = 3*m + 2*m - 25 for m..

Answer:
5

Question:
Solve 15*o - 4*o = -33*o + 440 for o..

Answer:
10

Question:
Solve 284*c + 65 = 271*c for c..

Answer:
-5

Question:
Solve 919*y + 828*y + 138013 = 0 for y..

Answer:
-79