question: Teacher asked me this: Solve 656*k + 651*k + 220 = 1362*k for k.
++++++++++
answer: 4

question: Teacher asked me this: Solve 49*h = 50*h + 5 for h.
++++++++++
answer: -5

question: Teacher asked me this: Solve 118*z - 5514 = -2682 for z.
++++++++++
answer: 24

question: Teacher asked me this: Solve 21*r = 113 + 34 for r.
++++++++++
answer:
7