Calculate the value of \( 4(2x + 3) \) when \( x = 3 \).

To find the value of ( 4(2x + 3) ) when ( x = 3 ), start by substituting ( 3 ) for ( x ) in the expression:

1. Substitute ( x = 3 ):

[

4(2(3) + 3)

]

2. Calculate the expression inside the parentheses first:

[

2(3) = 6

]

Then add ( 3 ):

[

6 + 3 = 9

]

3. Now multiply this result by ( 4 ):

[

4(9) = 36

]

Therefore, the value of the expression ( 4(2x + 3) ) when ( x = 3 ) is ( 36 ).