Questions: Find the value of the expression by replacing the variable with the number. x+15 x=9 15-x 15-9=6 x-15 9-15=-6 (x/15)/15=3/5 x+15 9+15=24

Transcript text: 5. Find the value of the expression by replacing the variable with the number. \[ x+15 \quad x=9 \] $15-x$ $15-9=6$ $x-15$ $9-15=-6$ $\frac{\frac{x}{15}}{15}=\frac{3}{5}$ $x+15$ $9+15=24$

Solution

Solution Steps

Step 1: Substitute $ x = 9 $ into the expression $ x + 15 $

Substitute $ x = 9 $ into the expression $ x + 15 $: \[ x + 15 = 9 + 15 = 24 \]

Step 2: Substitute $ x = 9 $ into the expression $ 15 - x $

Substitute $ x = 9 $ into the expression $ 15 - x $: \[ 15 - x = 15 - 9 = 6 \]

Step 3: Substitute $ x = 9 $ into the expression $ x - 15 $

Substitute $ x = 9 $ into the expression $ x - 15 $: \[ x - 15 = 9 - 15 = -6 \]

Final Answer

\[ \boxed{x + 15 = 24, \quad 15 - x = 6, \quad x - 15 = -6} \]

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