question: Teacher asked me this: Solve -30*x - 4 = -40*x + 6*x + 8*x for x.
++++++++++
answer: -1

question: Teacher asked me this: Solve 0 = -8*z + 4*z for z.
++++++++++
answer: 0

question: Teacher asked me this: Solve 2352*z - 3994 = 55744 - 12698 for z.
++++++++++
answer: 20

question: Teacher asked me this: Solve -324*t - 664*t = 282*t for t.
++++++++++
answer:
0