question: Teacher asked me this: Solve -103*b - 1914 = 71*b for b.
++++++++++
answer: -11

question: Teacher asked me this: Solve -31*d = -68*d - 74 for d.
++++++++++
answer: -2

question: Teacher asked me this: Solve -159*f - 3902 = -24*f + 6358 for f.
++++++++++
answer: -76

question: Teacher asked me this: Solve -2*d - 4 = -d for d.
++++++++++
answer:
-4