Question: What is the solution?

Solve 6*z = -38 + 14 for z.

Answer: -4

Question: What is the solution?

Solve -76*r = -26*r - 250 for r.

Answer: 5

Question: What is the solution?

Solve 16*c = 12*c + 16 for c.

Answer: 4

Question: What is the solution?

Solve -2743*f + 175944 = 52509 for f.

Answer:
45