Question:
Solve -60*t - 96*t - 312 = 0 for t..

Answer:
-2

Question:
Solve 0 = 3*r + 51381 - 51375 for r..

Answer:
-2

Question:
Solve -87*f + 223*f + 6266 = -789*f + 22916 for f..

Answer:
18

Question:
Solve 5*z = 623 - 683 for z..

Answer:
-12