The correct answer is option A which is x = 3.
<h3>What is an expression?</h3>
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.
The expression will be solved as:-
( 8x - 8 )
= 64
We can write 64 as 
( 8x - 8 )
= 
8x - 8 = 16
8x = 24
x = 3
Therefore the correct answer is option A which is x = 3.
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