Q: What is the solution?
Solve -t + 7*t - 12 = 0 for t.

A: 2

Q: What is the solution?
Solve -70*u + 8 = -66*u for u.

A: 2

Q: What is the solution?
Solve -14*x + 612 = 10*x + 10*x for x.

A:
18