The expression is .
(Apply distributive property: )
(Multiply:)
(Apply commutative property of addition: a + b = b + a)
(Add: )
The simplified expression is 5b + 6.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=976d621e5c107e277db5fdd788a004fe.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f0d7cd2f41974a805f2ec25ab31ec301.png\")
(Apply distributive property: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2ca759e2ab6e91a6d919095b13a54a03.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=31d8dffd52717c5995934d81fe22e080.png\")
(Multiply:![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6019c51f93f2666064158c0ee8f18ff7.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c340a0486696f85b8eb19765c078c3df.png\")
(Apply commutative property of addition: a + b = b + a)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=298fcb5e68a622575051160dfc1784d8.png\")
(Add: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5a69a2c3f5af3794d01c4d5236cd4863.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")