question: Teacher asked me this: Solve 237 = 77*i - 456 for i.
++++++++++
answer: 9

question: Teacher asked me this: Solve 16 = -118*d + 102*d for d.
++++++++++
answer: -1

question: Teacher asked me this: Solve -28*v = -114 - 194 for v.
++++++++++
answer: 11

question: Teacher asked me this: Solve 87 = -44*r - 133 for r.
++++++++++
answer:
-5