Question:
Solve 6*o = 7*o + 1 for o..

Answer:
-1

Question:
Solve 145*c + 7581 = 1502*c - 29058 for c..

Answer:
27

Question:
Solve 591*y = -753*y + 53*y - 98116 for y..

Answer:
-76

Question:
Solve -298*t + 124*t - 104 = -148*t for t..

Answer:
-4