Question:
Solve -22*a - 66 = -55*a for a..

Answer:
2

Question:
Solve -384*r = 113*r + 23976 - 5090 for r..

Answer:
-38

Question:
Solve -2002*a + 2060*a = 522 for a..

Answer:
9

Question:
Solve -8334 = -2469*c + 70674 for c..

Answer:
32