Question:
Solve -97*o + 123*o = 81*o - 825 for o..

Answer:
15

Question:
Solve -122*z - 1043 = 27*z for z..

Answer:
-7

Question:
Solve 6*y + 41 - 36 + 13 = 0 for y..

Answer:
-3

Question:
Solve -48*f - 262 - 440 + 30 = 0 for f..

Answer:
-14