question: Teacher asked me this: Solve -257752 + 309878 = -778*n for n.
++++++++++
answer: -67

question: Teacher asked me this: Solve 6*d - 3 - 21 = 0 for d.
++++++++++
answer: 4

question: Teacher asked me this: Solve -745*a = -706*a + 819 for a.
++++++++++
answer: -21

question: Teacher asked me this: Solve 234*n - 242*n = -16 for n.
++++++++++
answer:
2