![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
\
The statement is “![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3fa3809d9fcadc86312e7439e3e50244.png\")
”
Write the expression in addition form ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3c72a3afe4c2e0a0c22b358491f0388a.png\")
The two integers have different signs, subtract their absolute values
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c70c7fe72d920ff04758b9721541dc48.png\")
(Subtract:![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8da09b68b9cb65647abe8ed55f4d17f1.png\")
)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f56833abdcb324673dc919ea5bd48b49.png\")
(The absolute value of -21 is 21)
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The value of expression is 21.
\