Question:
Solve -646*n + 8951 = 83*n - 15832 + 6558 for n..

Answer:
25

Question:
Solve 28*d = -74 - 150 for d..

Answer:
-8

Question:
Solve 7 + 33 = 8*q for q..

Answer:
5

Question:
Solve 66*n - 49*n = 85 for n..

Answer:
5