question: Teacher asked me this: Solve 1125 + 2472 = 309*k + 18*k for k.
++++++++++
answer: 11

question: Teacher asked me this: Solve -278*h + 4545 = -1015 for h.
++++++++++
answer: 20

question: Teacher asked me this: Solve -2*i + 6 - 6 = 0 for i.
++++++++++
answer: 0

question: Teacher asked me this: Solve 72*j - 459 = 21*j for j.
++++++++++
answer:
9