Q: What is the solution?
Solve 212 = -5*t + 207 for t.

A: -1

Q: What is the solution?
Solve -107*l + 10296 = 355*l + 298*l - 188*l for l.

A: 18

Q: What is the solution?
Solve -16*i + 14*i = 0 for i.

A:
0