![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The statement is "![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4eac438297d4c80f45b2212ce3346e32.png\")
"
Commutative Property of Addition:
\The order in which numbers are added does not change the sum.
\For any numbers a and b: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=04ab48db2a6385513b3391bf07d33cff.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ad5f6c1143249341fbd0a3b469f80dd0.png\")
\ \
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Associative Property of Addition:
\The way in which numbers are grouped when added does not change the sum.
\For any numbers a, b and c: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0ac940ec69cdcbea7470db4d2cb12516.png\")
.
According to associative property, the statement can be written as
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=92949e8f52e0869780d1f20254068739.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=97560ad5f1de910ce84add21b1ce3bdc.png\")
(Add: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7c86d93fd830a80c6e13d2a2d50521c7.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The simplified expression is 11+k.