question: Teacher asked me this: Solve 5*d + 10*d + 109 = -86 for d.
++++++++++
answer: -13

question: Teacher asked me this: Solve -1314*m = 748*m + 1131*m + 174936 - 53602 for m.
++++++++++
answer: -38

question: Teacher asked me this: Solve -81*h + 461*h - 7980 = 0 for h.
++++++++++
answer: 21

question: Teacher asked me this: Solve 204*c + 421 = 625*c for c.
++++++++++
answer:
1