\
\
The expression is
.
\
(
Distributive property:
)
\
(Add:
)
\
The solution is 20x
.
\
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b74839dc235f7a3ed99c169f297dec38.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=19e9777b52607fa29272b3c21c331dd6.png\")
(Distributive property: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2ca759e2ab6e91a6d919095b13a54a03.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=75188d6981410bd36f8bb18a46d568e6.png\")
(Add:![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=abf95635e96803f4bd8f359305c1fa41.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")