question: Teacher asked me this: Solve 1980*w - 985*w = 985*w - 280 for w.
++++++++++
answer: -28

question: Teacher asked me this: Solve -49*x + 56*x - 28 = 0 for x.
++++++++++
answer: 4

question: Teacher asked me this: Solve 60*j + 34 = -249 - 247 + 170 for j.
++++++++++
answer: -6

question: Teacher asked me this: Solve -301 - 509 = 81*y for y.
++++++++++
answer:
-10