question: Teacher asked me this: Solve 11*k + 27*k + 190 = 0 for k.
++++++++++
answer: -5

question: Teacher asked me this: Solve 23*f + 23*f = -4*f - 1050 for f.
++++++++++
answer: -21

question: Teacher asked me this: Solve -1535*y + 194*y + 28161 = 0 for y.
++++++++++
answer: 21

question: Teacher asked me this: Solve -2*r + 46*r + 19 = -25 for r.
++++++++++
answer:
-1