Answer :
To solve for x, you must isolate that variable on one side of the equals sign.
[tex]Ex-2y=3z \\ Ex=2y+3z \\ x= \dfrac{2y+3z}{E}[/tex]
[tex]Ex-2y=3z \\ Ex=2y+3z \\ x= \dfrac{2y+3z}{E}[/tex]