Question:
Solve -80*t + 72*t + 16 = 0 for t..

Answer:
2

Question:
Solve 7*z + 23816 - 23711 = 0 for z..

Answer:
-15

Question:
Solve -594 = -522*j - 8946 for j..

Answer:
-16

Question:
Solve -21*i + 8*i + 156 = 0 for i..

Answer:
12