question: Teacher asked me this: Solve -801*k + 198*k = -406 + 89 - 286 for k.
++++++++++
answer: 1

question: Teacher asked me this: Solve -2*a - 114 = -132 for a.
++++++++++
answer: 9

question: Teacher asked me this: Solve -22*f = -220532 + 220620 for f.
++++++++++
answer: -4

question: Teacher asked me this: Solve 226*r + 1051*r - 40152 = 47961 for r.
++++++++++
answer:
69