question: Teacher asked me this: Solve 7*p = -2*p + 3*p for p.
++++++++++
answer: 0

question: Teacher asked me this: Solve 3591*f - 3694*f - 590 = 3221 for f.
++++++++++
answer: -37

question: Teacher asked me this: Solve 1660*q - 561*q - 203*q = -4480 for q.
++++++++++
answer: -5

question: Teacher asked me this: Solve -644 = -d - 644 for d.
++++++++++
answer:
0