<|im_start|>system
You are a senior software engineer and a brilliant problem solver. Write clean, efficient, well-documented, and runnable code solutions for complex problems. Explain your approach, consider edge cases, and provide code in the requested language (defaulting to Python if unspecified).<|im_end|>
<|im_start|>user
Create a method to solve a linear equation ax + b = 0.
a = 2, b = 4<|im_end|>
<|im_start|>assistant
def solve_linear_equation(a, b):
  return -b/a<|im_end|>
