A logistics software engineer is analyzing a growth algorithm and needs to solve the following equation to determine a specific system parameter $x$: $\log_4(x+6) - \log_4(2x+5) = -\log_4 x$. Arrange the steps below in the correct chronological order to find the valid solution.

An inventory forecasting algorithm relies on the equation $\log_4(x+6) - \log_4(2x+5) = -\log_4 x$ to determine a critical reorder parameter, $x$. During a manual audit, a supply chain technician solves the equation algebraically and generates two potential mathematical answers: $x = -5$ and $x = 1$. What key mathematical rule must the technician recall to identify the valid parameter?

A lab technician is calibrating a sensor that follows a logarithmic response curve. To find the equilibrium point $x$, the technician must solve the equation $\log_4(x+6) - \log_4(2x+5) = -\log_4 x$. Match each step of the algebraic verification with the logarithmic property or rule that justifies it.

A biomedical researcher is using the logarithmic model $\log_4(x+6) - \log_4(2x+5) = -\log_4 x$ to determine the growth rate $x$ of a cell population. After solving the equation algebraically, the researcher finds two potential roots: $x = -5$ and $x = 1$. The researcher must reject $x = -5$ because it results in the logarithm of a negative number in the original equation, making it an ____ solution.

Identifying Logarithmic Properties in System Optimization