Q: What is the solution?
Solve -75*t - 7*t = -68*t + 84 for t.

A: -6

Q: What is the solution?
Solve 20*k + 9 = -51 for k.

A: -3

Q: What is the solution?
Solve 11*c = 8*c + 9 for c.

A:
3