question: Teacher asked me this: Solve -20485*b - 205 - 5 = -20470*b for b.
++++++++++
answer: -14

question: Teacher asked me this: Solve 210 = -13*m - 22*m for m.
++++++++++
answer: -6

question: Teacher asked me this: Solve -361*n = -66*n + 1180 for n.
++++++++++
answer: -4

question: Teacher asked me this: Solve -20*d + 152 = -d for d.
++++++++++
answer:
8