![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The equations of linear system are ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8cec004c18037451239772f647ac9b16.png\")
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To solving the above linear system using the substitution method, solve the second equation for y - variable, since the y - variable has a coefficient of 1.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
To solving linear system ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8cec004c18037451239772f647ac9b16.png\")
using the substitution method, solve the second equation for y - variable, since the y - variable has a coefficient of 1.