Question:
Solve -163*n - 1871 - 1063 = 0 for n..

Answer:
-18

Question:
Solve 15*q - 485 = -545 for q..

Answer:
-4

Question:
Solve -129 - 52 + 458 = -12*a - 227 for a..

Answer:
-42

Question:
Solve 26*u - 119*u = -465 for u..

Answer:
5