Question: What is the solution?

Solve -190258*x - 3905 = -190203*x for x.

Answer: -71

Question: What is the solution?

Solve 115*v + 3268 + 4529 = -224*v for v.

Answer: -23

Question: What is the solution?

Solve -45*t + 38*t - 28 = 0 for t.

Answer: -4

Question: What is the solution?

Solve -18*r + 1234 = -1563 + 2545 for r.

Answer:
14