Question:
Solve 0 = 67780*m - 67409*m + 4783 + 42729 + 7396 for m..

Answer:
-148

Question:
Solve -15*n + 44 = 7*n for n..

Answer:
2

Question:
Solve 221*s - 1891406 = -1891848 for s..

Answer:
-2

Question:
Solve -10743 - 9251 = 820*d - 314 for d..

Answer:
-24