Question: What is the solution?

Solve 1541856 - 1539756 = 30*m for m.

Answer: 70

Question: What is the solution?

Solve -64 = -d - 62 for d.

Answer: 2

Question: What is the solution?

Solve -160*x + 4854 + 15812 + 3474 = 550*x for x.

Answer: 34

Question: What is the solution?

Solve 109*t + 20*t - 7222 = 221 - 90 for t.

Answer:
57