Q: What is the solution?
Solve -19*z + 5475 - 5665 = 0 for z.

A: -10

Q: What is the solution?
Solve 9*l + 5*l = 70 for l.

A: 5

Q: What is the solution?
Solve -7*k - 2*k + 9 = 0 for k.

A:
1