![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
Order of Operations:
\To simplify the expression follow the order of operations: (PEMDAS)
\1. Evaluate the expressions inside the Parenthesis/Brackets (P).
\2. Evaluate Powers/Exponents (E).
\3. Multiply and/or Divide in order from left to right (MD).
\4. Add and/or Subtract in order from left to right (AS).
\A simple technique for remembering the order of operations is turned into phrase "Please Excuse My Dear Aunty Sally"
\
The expression is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cde627cce2bb9d3821ae095ba6f08242.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b278bb3e9be781d61ec91d88c530b22b.png\")
(Substitute x = 6 and y = 12)
Simplify the expression using order of operations (PEMDAS).![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Since there are no grouping symbols and powers, first operation is division.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0ae37ab58615a7bfe0652bb1cb568d28.png\")
(Divide: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5da4c7b3dac520dc99e14ea1527551ab.png\")
)
Next operation is addition.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=40aed45537a43be7d4dff694b1de635a.png\")
(Add: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7478c4b96324ecfd94fdb268b78c64af.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The value of the expression is 10.