question: Teacher asked me this: Solve -540*r = -297*r + 7776 for r.
++++++++++
answer: -32

question: Teacher asked me this: Solve 1385*y + 19840 - 29754 = -296*y + 69093 for y.
++++++++++
answer: 47

question: Teacher asked me this: Solve -1702*z + 27 = 1699*z - 3410*z for z.
++++++++++
answer: -3

question: Teacher asked me this: Solve 761*x - 762*x - 15 = 0 for x.
++++++++++
answer:
-15