Question: What is the solution?

Solve 21*q = -16 + 247 for q.

Answer: 11

Question: What is the solution?

Solve 138 = 20*j + 18 for j.

Answer: 6

Question: What is the solution?

Solve 18708*p - 19614*p + 6342 = 0 for p.

Answer: 7

Question: What is the solution?

Solve 207*y + 1421 = 54 - 703 for y.

Answer:
-10