Question: What is the solution?

Solve -90 + 174 = 21*l for l.

Answer: 4

Question: What is the solution?

Solve 120*m + 8 = 128*m for m.

Answer: 1

Question: What is the solution?

Solve 1390*j - 14508 - 71151 = 22178 + 15873 for j.

Answer: 89

Question: What is the solution?

Solve 3221 = 29*x + 110*x - 2200 for x.

Answer:
39