To subtract an integer , add its opposite.
Opposite of is 8.
(Add 8 to 1)
(Add: )
The difference is 9.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ebd6ef47d69f34cd126a47abb23f1a31.png\")
is 8.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5f6317f8a620f60dc631a8e3547c0805.png\")
(Add 8 to 1)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d74d4ec5771319368d70f0f70ff65471.png\")
(Add: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e0a962b81ff5fabfaede8ffe38536ff1.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")