Question:
Solve 24*i = -2*i + 260 for i..

Answer:
10

Question:
Solve 3640 - 1309 - 697 = 113*s - 6615 for s..

Answer:
73

Question:
Solve -676*r = -661*r + 180 for r..

Answer:
-12

Question:
Solve -1891*b - 948 = -93607 for b..

Answer:
49