![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The equation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ab72161ac3bf5f0bd140b2dc2c46957a.png\")
\ \
Subtraction property of equality: if ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c3496c16ebb8ec2293d0eb6f139a62e7.png\")
, then ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c84f635c23b14d1aade7a696c0a79913.png\")
.
![\"\"](\"plugins/fckeditor_wiris/integration/showimage.php?formula=ab72161ac3bf5f0bd140b2dc2c46957a.png\")
(Subtract 3 from both sides)
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image011.gif\")
(Subtract: ![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image013.gif\")
and ![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image015.gif\")
)
Write two cases:
\Case-1: ![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image005.gif\")
.
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image018.gif\")
Case-2: ![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image020.gif\")
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image022.gif\")
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image023.gif\")
Solve the equation for Case-1.
\
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image025.gif\")
(Subtract 4 from both sides)
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image027.gif\")
(Subtract: ![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image029.gif\")
and ![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image031.gif\")
)
Check:
\To check the solution, substitute in original equation.
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image034.gif\")
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image036.gif\")
(Add:![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image038.gif\")
)
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image040.gif\")
(The absolute value of 14 is 14)
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image042.gif\")
(Add: )
Compare the values the equation is true. is a solution.
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image044.gif\")
Solve the equation for Case-2.
\
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image046.gif\")
(Subtract 4 from both sides)
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image048.gif\")
(Subtract: . Add:![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image051.gif\")
)
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image052.gif\")
Check:
\To check the solution, substitute in original equation.
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image054.gif\")
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image056.gif\")
(Subtract:![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image058.gif\")
)
(The absolute value of ![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image060.gif\")
is 14)
(Add: )
Compare the values the equation is true. is a solution.
![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image061.gif\")
The solution set is ![\"\"](\"file:///C:/DOCUME%7E1/ADMINI%7E1/LOCALS%7E1/Temp/msohtmlclip1/01/clip_image063.gif\")