![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The equation is ![\"7](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=40f9ca9d70967174e41f7800cb3b2998.png\")
.
![\"7](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=4c6bb5223edfdd73119e966736754e9f.png\")
(Subtract 3d from each side)
![\"4](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=97b96642c0d94511fea03e0fa8e5ed6e.png\")
(Simplify)
![\"4](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=aa7eab22a9408fb074c172ed07f8b3d6.png\")
(Add 13 to each side)
![\"4](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=c3fe0a96044512f0d053c7d8f645f111.png\")
(Simplify)
![\"fraction](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=2f23a787364dda78ef24b4fd112352d3.png\")
(Divide each side by 4)
![\"d](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=1f90204028e795fabf3544f55cb5fd44.png\")
(Simplify)![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
Check:
\To check the solution, substitute in the original equation.
![\"7](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=5731f009a11041907c0dab4fbd5aac9b.png\")
(Substitute )
![\"35](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=10f80427e70e5a367a9c9de26b974d5c.png\")
(Multiply: ![\"7](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=68cb834ae3001ab423c2ebed7d5756db.png\")
)
![\"22](\"http://www.wiris.com/demo-aspx/pluginwiris3/fckeditor_wiris/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.aspx?formula=f0eebe73d28fd9b97674f9480d149043.png\")
(Simplify)
The equality is true.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The solution is .