Question:
Solve 0 = 1442*i - 1456*i + 112 for i..

Answer:
8

Question:
Solve 53*f = 81*f - 28 for f..

Answer:
1

Question:
Solve 232 = -28574*r + 28545*r for r..

Answer:
-8

Question:
Solve -97*a + 194 - 180 = 208 for a..

Answer:
-2