Question:
Solve -174 = 4*o - 138 for o..

Answer:
-9

Question:
Solve 40 = -7*y - 13*y for y..

Answer:
-2

Question:
Solve -8*z + 11*z = 0 for z..

Answer:
0

Question:
Solve 0 = 2952*t - 38*t - 57053 - 339251 for t..

Answer:
136