question: Teacher asked me this: Solve -102*d + 195*d = 78*d + 270 for d.
++++++++++
answer: 18

question: Teacher asked me this: Solve 15 + 2 = -17*m for m.
++++++++++
answer: -1

question: Teacher asked me this: Solve 0 = 28*z - 213 - 11 for z.
++++++++++
answer: 8

question: Teacher asked me this: Solve -25*k + 6 = -28*k for k.
++++++++++
answer:
-2