Question:
Solve 40*o - 98*o = 10 + 48 for o..

Answer:
-1

Question:
Solve 28*q + 47316 = 47204 for q..

Answer:
-4

Question:
Solve 3*r = -13417 + 13381 for r..

Answer:
-12

Question:
Solve -54 = -20*j - 14 for j..

Answer:
2