Solve the equation. {:[12=n-9],[n=◻]:}

Identify the first equation: Identify the first equation in the system. The first equation is 12 = n - 9.Isolate n by adding 9: Add 9 to both sides of the equation to isolate n. 12 + 9 = n - 9 + 9 21 = nVerify the solution: Verify the solution by substituting the value of n back into the first equation. 12 = 21 - 9 12 = 12 This shows that n = 21 is the correct solution.

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Solve the equation. $\newline$ $\begin{aligned} & 12=n-9 \\ n= & \square \end{aligned}$

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Q. Solve the equation.

\newline

\begin{aligned} & 12=n-9 \\ n= & \square \end{aligned}

Identify the first equation: Identify the first equation in the system. $\newline$ The first equation is $12 = n - 9$ .
Isolate $n$ by adding $9$ : Add $9$ to both sides of the equation to isolate $n$ . $\newline$ $12 + 9 = n - 9 + 9$ $\newline$ $21 = n$
Verify the solution: Verify the solution by substituting the value of $n$ back into the first equation. $\newline$ $12 = 21 - 9$ $\newline$ $12 = 12$ $\newline$ This shows that $n = 21$ is the correct solution.