Question:
Solve 0*i + 45 = -10*i + 145 for i..

Answer:
10

Question:
Solve -181*q - 116*q + 15625 + 10531 = 206*q for q..

Answer:
52

Question:
Solve -4*a - 194 = -166 for a..

Answer:
-7

Question:
Solve 0*p = 15*p - 15 for p..

Answer:
1