question: Teacher asked me this: Solve 1419 = -707*l - 304 + 247 - 645 for l.
++++++++++
answer: -3

question: Teacher asked me this: Solve 87991 = -0*v - 19*v + 89834 for v.
++++++++++
answer: 97

question: Teacher asked me this: Solve 250*y + 105*y - 15505 = -950 for y.
++++++++++
answer: 41

question: Teacher asked me this: Solve -256*l + 21 = -249*l for l.
++++++++++
answer:
3