Question: What is the solution?

Solve -616 = -16709*d + 16717*d for d.

Answer: -77

Question: What is the solution?

Solve -4*o - 234 = 35*o for o.

Answer: -6

Question: What is the solution?

Solve 25*j = 85*j + 46*j - 212 for j.

Answer: 2

Question: What is the solution?

Solve -961899*r - 470 = -961904*r for r.

Answer:
94