Question:
Solve 88 - 4 = -28*j for j..

Answer:
-3

Question:
Solve 579*f - 33454 - 19377 - 19394 = 2184*f for f..

Answer:
-45

Question:
Solve 9*j + 36 = -0*j for j..

Answer:
-4

Question:
Solve 47*z + 436 = 60 for z..

Answer:
-8