question: Teacher asked me this: Solve y + 229 - 231 = 0 for y.
++++++++++
answer: 2

question: Teacher asked me this: Solve 20*i - 6 - 50 = 6*i for i.
++++++++++
answer: 4

question: Teacher asked me this: Solve -45 = -13*y - 19 for y.
++++++++++
answer: 2

question: Teacher asked me this: Solve -120*l - 370 + 10 = 0 for l.
++++++++++
answer:
-3