question: Teacher asked me this: Solve -428*s + 288*s = 2940 for s.
++++++++++
answer: -21

question: Teacher asked me this: Solve 0 = -690*p + 678*p + 228 for p.
++++++++++
answer: 19

question: Teacher asked me this: Solve -719*k - 1157*k = -541*k - 45390 for k.
++++++++++
answer: 34

question: Teacher asked me this: Solve 4228 - 1980 = 596*i - 6096 for i.
++++++++++
answer:
14