Question:
Solve -3*t + 45 = 48 for t..

Answer:
-1

Question:
Solve 746*q = 716*q - 210 for q..

Answer:
-7

Question:
Solve -3621183*z = -3620958*z + 18900 for z..

Answer:
-84

Question:
Solve 23*z - 15 = 12 + 65 for z..

Answer:
4