# Solving One-Step Subtraction Equations

Some linear equations can be solved with a single operation. For this type of equation, use the inverse operation to solve.

Example :

Solve for $n$ .

$x-9=15$

The inverse operation of subtraction is addition. So, add $9$ to both sides.

$\begin{array}{l}x-9+9=15+9\\ x=24\end{array}$