question: Teacher asked me this: Solve 0 = 2*l + 39 - 43 for l.
++++++++++
answer: 2

question: Teacher asked me this: Solve 141*y = -160*y - 1661 - 747 for y.
++++++++++
answer: -8

question: Teacher asked me this: Solve 306 + 454 + 444 = -28*k + 56 for k.
++++++++++
answer: -41

question: Teacher asked me this: Solve 14*c + 518 = 574 for c.
++++++++++
answer:
4