If x + 3 = 11, what is the value of 5x?

To determine the value of ( 5x ), we first need to solve the equation ( x + 3 = 11 ). To isolate ( x ), we can subtract 3 from both sides of the equation:

[

x + 3 - 3 = 11 - 3

]

This simplifies to:

[

x = 8

]

Now, to find the value of ( 5x ), we multiply ( x ) by 5:

[

5x = 5 \times 8

]

Calculating that gives:

[

5x = 40

]

Thus, the correct value for ( 5x ) is 40. This confirms that the correct choice corresponds to this calculation.