question: Teacher asked me this: Solve 224 = 25*a + 77 - 278 for a.
++++++++++
answer: 17

question: Teacher asked me this: Solve 2*z + 60 = 42 for z.
++++++++++
answer: -9

question: Teacher asked me this: Solve -34*y = -62*y + 84 for y.
++++++++++
answer: 3

question: Teacher asked me this: Solve 92589278 - 92589889 = 47*l for l.
++++++++++
answer:
-13