question: Teacher asked me this: Solve -15 = -11*k + 8*k for k.
++++++++++
answer: 5

question: Teacher asked me this: Solve -339*c + 157*c - 266*c = -45696 for c.
++++++++++
answer: 102

question: Teacher asked me this: Solve 146*o - 1594*o - 1672*o + 345679 + 63041 = 0 for o.
++++++++++
answer: 131

question: Teacher asked me this: Solve 21*s + 308 - 121 = -149 for s.
++++++++++
answer:
-16