Question:
Solve 0 = 128*i + 810 - 42 for i..

Answer:
-6

Question:
Solve -7890*m + 96840 - 455520 = 2021*m - 1371*m for m..

Answer:
-42

Question:
Solve -26*x - 365 = 314 - 133 for x..

Answer:
-21

Question:
Solve 1141*p = -5357*p - 3732*p - 20460 for p..

Answer:
-2