question: Teacher asked me this: Solve 36*i + 4*i + 10*i + 350 = 0 for i.
++++++++++
answer: -7

question: Teacher asked me this: Solve 8667*x + 462 = 8744*x for x.
++++++++++
answer: 6

question: Teacher asked me this: Solve 4*l + 1 = 21 for l.
++++++++++
answer: 5

question: Teacher asked me this: Solve 77*a + 35 = -81*a + 163*a for a.
++++++++++
answer:
7