question: Teacher asked me this: Solve 105*r + 1189 + 5451 = -1970 for r.
++++++++++
answer: -82

question: Teacher asked me this: Solve 1937 = -711*w + 64*w - 4533 for w.
++++++++++
answer: -10

question: Teacher asked me this: Solve 384 = -12*m + 776 - 344 for m.
++++++++++
answer: 4

question: Teacher asked me this: Solve -20*k + 26*k - 21*k = 30 for k.
++++++++++
answer:
-2