question: Teacher asked me this: Solve -7 - 8 = -5*p for p.
++++++++++
answer: 3

question: Teacher asked me this: Solve -331*d = -62*d + 345*d + 3894 + 18210 for d.
++++++++++
answer: -36

question: Teacher asked me this: Solve -1787*f + 75084 + 169735 = 0 for f.
++++++++++
answer: 137

question: Teacher asked me this: Solve -4447*u - 611*u - 453180 = -18192 for u.
++++++++++
answer:
-86