Question:
Solve -8167*x - 9 = -8134*x - 174 for x..

Answer:
5

Question:
Solve 1597 = -27*x + 1921 for x..

Answer:
12

Question:
Solve -2*c = -7 + 9 for c..

Answer:
-1

Question:
Solve -359 - 1071 = 110*w for w..

Answer:
-13