Answer :

naǫ
[tex]4n+6=18 \ \ \ \ \ \ \ \ \ \ \ \ |\hbox{subtract 6 from both sides} \\ 4n+6-6=18-6 \\ 4n=12 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\hbox{divide both sides by 4} \\ n=3[/tex]

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