Use the Associative Property of Addition to Write an Equivalent $$9 + ( 2 + x )$$

Multiple Choice

Use the associative property of addition to write an equivalent algebraic expression.
- $$9 + ( 2 + x )$$

A) $( 9 + 2 ) x$
B) $2 ( 9 + x )$
C) $9 ( 2 + x )$
D) $( 9 + 2 ) + x$