question: Teacher asked me this: Solve -1903686 = -21311*u + 4612*u for u.
++++++++++
answer: 114

question: Teacher asked me this: Solve -396 = -41*l + 383 for l.
++++++++++
answer: 19

question: Teacher asked me this: Solve 2325*z + 1047*z + 1231*z = 257768 for z.
++++++++++
answer: 56

question: Teacher asked me this: Solve 8*u + 20 - 21 - 263 = 0 for u.
++++++++++
answer:
33