Question:
Solve 0 = 6*h - 51*h + 45 for h..

Answer:
1

Question:
Solve -300 = -27*d + 186 for d..

Answer:
18

Question:
Solve 0 = 4*q - 21*q + 11*q for q..

Answer:
0

Question:
Solve 695*m = 158*m - 15542 - 1105 for m..

Answer:
-31