Question:
Solve -140*t = -142*t - 109*t - 39*t + 2850 for t..

Answer:
19

Question:
Solve 14*f + 4*f - 18 = 0 for f..

Answer:
1

Question:
Solve 3*g = 10*g + 21 for g..

Answer:
-3

Question:
Solve -60*s - 62*s - 84*s - 1528 = -15*s for s..

Answer:
-8