question: Teacher asked me this: Solve 281*y = 140*y - 1410 for y.
++++++++++
answer: -10

question: Teacher asked me this: Solve -19796*x + 19795*x - 3 = 0 for x.
++++++++++
answer: -3

question: Teacher asked me this: Solve -7 = -4*x - 15 for x.
++++++++++
answer: -2

question: Teacher asked me this: Solve 0 = -190*s - 1439 - 1387 - 784 for s.
++++++++++
answer:
-19