question: Teacher asked me this: Solve 107 = 18*s + 42 - 7 for s.
++++++++++
answer: 4

question: Teacher asked me this: Solve -42006*g = -42418*g + 3037 - 565 for g.
++++++++++
answer: 6

question: Teacher asked me this: Solve -24*w - 25 = 191 for w.
++++++++++
answer: -9

question: Teacher asked me this: Solve 0 = -22*a + 18*a - 8 for a.
++++++++++
answer:
-2