Determine the value of rm In the given equation.

\(1000-n=258\) Write the equation

\(1000-n-1000=258-1000\) Subtract 1000 from both sides

\(-n=-742\) Simplify

\(-\frac{1n}{1}=\frac{-742}{-1}\) Divide both sides by -1

\(n=742\) Simplify

Check by substituting the value of n to the original equation.

\(1000-n=258\) Write the equation

\(1000-742=258\) Substitute the value of m

\(258 =258\) This statement is true