![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
\
The expression is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=567c4e01d479fc56fae553b664cb12d2.png\")
\ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=148af334b213374bf5a1b985d61360d1.png\")
(Substitute 5 for a)
To simplify the expression following order of operations to performed:
\1. Evaluate the expressions inside grouping symbols.
\2. Evaluate Powers.
\3. Multiply and/or Divide in order from left to right.
\4. Add and/or Subtract in order from left to right.
\![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
In the given expression there are no grouping symbols, powers.
\First operation is addition.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=497e3ca02116d7188ea6669c409c5a4b.png\")
(Add 5 and 7: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=bbd566e450634beb50064df64f888029.png\")
)
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The value of expression is 12.
\