The equation is .
\
Subtraction property of equality: if a = b, then a c = b c.
(Subtract 7 from each side.)
(Subtract: )
The value of .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ff69b91e56d27498d580cf12e05eb5ef.png\")
. ![\"\"](\"http://c4anything.com/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c7a8c800d2df7d176b09fff75181eb8f.png\")
c = b c.![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c1666361037717fa1339adb577ba0691.png\")
(Subtract 7 from each side.)![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=51c01099bfcba3079909b329cc3237a1.png\")
(Subtract: ![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b674ce011211c86f078e6dc7f2f63478.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://c4anything.com/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=51c01099bfcba3079909b329cc3237a1.png\")
.