Question:
Solve -2*y - 72 + 62 = 0 for y..

Answer:
-5

Question:
Solve -256 = -7409*z + 7281*z for z..

Answer:
2

Question:
Solve -6*z = 323 - 359 for z..

Answer:
6

Question:
Solve -5*b + 25 = 5 for b..

Answer:
4