question: Teacher asked me this: Solve 6*z - 8 = 4*z for z.
++++++++++
answer: 4

question: Teacher asked me this: Solve -3586 + 4126 = -75*s - 64*s - 8356 for s.
++++++++++
answer: -64

question: Teacher asked me this: Solve -174*o = 94*o for o.
++++++++++
answer: 0

question: Teacher asked me this: Solve 0 = 14*x - 28 - 28 for x.
++++++++++
answer:
4