![\"\"](\"http://www.mathskey.com/userfiles/image/Library/subtraction_property_of_equality.gif\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The linear function is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3f1f59bf2336c5430e4b74b3f45f41b2.png\")
.
Rewrite the equation in standard form Ax + By = C.
\Apply subtraction property of equality: Subtract 7y from each side.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7cd40853c45c7e7930b041e4dcce56d6.png\")
Apply commutative property of addition: a + b = b + a.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6d5207829fb67368cc2d553307cc9d95.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ee7c621e6f62b6253737be85f3c0c448.png\")
(Apply Additive inverse property: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4ee0ea5ca4b8f7fe824529a4ef47ec9c.png\")
)
Compare the equation with standard form to find the values A, B and C.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9025ae6ef64e0771a75fb384693b2636.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The equation in standard form is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ee7c621e6f62b6253737be85f3c0c448.png\")
. ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9025ae6ef64e0771a75fb384693b2636.png\")
.