question: Teacher asked me this: Solve 153 = 1157*z - 1140*z for z.
++++++++++
answer: 9

question: Teacher asked me this: Solve -438 = -52*m - 74 for m.
++++++++++
answer: 7

question: Teacher asked me this: Solve -2639 = 29613*l - 29243*l - 29279 for l.
++++++++++
answer: 72

question: Teacher asked me this: Solve 22*k + 70 = 36*k for k.
++++++++++
answer:
5