Question: What is the solution?

Solve -81*z = -42*z - 273 for z.

Answer: 7

Question: What is the solution?

Solve -32*m + 19*m + 28*m - 105 = 0 for m.

Answer: 7

Question: What is the solution?

Solve 12*c - 5119528 + 5120248 = 0 for c.

Answer: -60

Question: What is the solution?

Solve 308*z + 79*z = -0*z + 6192 for z.

Answer:
16