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The expression is
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.
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Think
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The expression can be
of
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(Think:
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(Think:
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64 is
of 80.
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of 80.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5d139061fbabc1d2aff3d13c462ad992.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c3ae599906c3218c2f44e37ea50f9bbb.png\")
of 80.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6577d6fde1841e22b222d24a97e55683.png\")
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(Think: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f25375cf0b9df4f66c55cbacb14ff550.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0baa5a6390190448cf26d52067ce3daa.png\")
(Think: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c578cf0e96e7af8933fa7ffc0fd8b285.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
of 80.