Question: What is the solution?

Solve 4*t - 208 = -212 for t.

Answer: -1

Question: What is the solution?

Solve -235 = -45*u - 49 + 1029 for u.

Answer: 27

Question: What is the solution?

Solve 7*x - 6 = 9*x for x.

Answer: -3

Question: What is the solution?

Solve 858 + 462 = 220*l for l.

Answer:
6