question: Teacher asked me this: Solve 0 = -5*z - 258 + 243 for z.
++++++++++
answer: -3

question: Teacher asked me this: Solve 11324423 - 11315043 = -134*q for q.
++++++++++
answer: -70

question: Teacher asked me this: Solve -15*y = -21*y for y.
++++++++++
answer: 0

question: Teacher asked me this: Solve 0 = -3*a + 11 - 5 for a.
++++++++++
answer:
2