Question:
Solve 64*s + 47554 = 47490 for s..

Answer:
-1

Question:
Solve 22*f = -192 + 38 for f..

Answer:
-7

Question:
Solve 53*z - 64*z - 450 = -56*z for z..

Answer:
10

Question:
Solve 0 = 2365*u + 2739*u - 173536 for u..

Answer:
34