Question: What is the solution?

Solve 74*r + 69*r - 7437 + 21594 = 0 for r.

Answer: -99

Question: What is the solution?

Solve -196315 = 2504*o - 288*o - 30115 for o.

Answer: -75

Question: What is the solution?

Solve 46*z + 2701 - 1778 = -3493 for z.

Answer: -96

Question: What is the solution?

Solve 4*z - 2*z - 6 = 0 for z.

Answer:
3