Question: What is the solution?

Solve 15*q - 959 = -15*q - 989 for q.

Answer: -1

Question: What is the solution?

Solve -46*k + 53*k = -21 for k.

Answer: -3

Question: What is the solution?

Solve 37*n - 300 = 149 - 153 for n.

Answer: 8

Question: What is the solution?

Solve 51*j - 62*j + 33 + 33 = 0 for j.

Answer:
6