Question:
Solve 759*r - 918*r = 2385 for r..

Answer:
-15

Question:
Solve 8*g + 95 - 63 = 0 for g..

Answer:
-4

Question:
Solve 15 = 13*t - 8*t for t..

Answer:
3

Question:
Solve 76 = 6*r + 4 for r..

Answer:
12