First draw a number line
Locate the points -5 and 2 on number line
From point -5 move 7 units to right
The expression is
The sum is 2.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
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![\"\"](\"/userfiles/image/Library/numberline_pa33_p5.gif\")
![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=522aeaf1b2f623a99fdeb244bab91eb2.png\")
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5e095665a965a1a4779477fcd271e7c1.png\")
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")