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DᴀʀᴋPᴀʀᴀᴅᴏx

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

[tex] \fbox \colorbox{black}{ \colorbox{white}{n} \:  \:  \:   \:  \:  \:  \: \: \colorbox{white}{=}  \:  \:  \:  \:  \:   + \colorbox{white}{3.6}}[/tex]

[tex] \large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}[/tex]

Let's solve for n ~

  • [tex]4(n - 1) = 1.5n + 5[/tex]

  • [tex]4n - 4 = 1.5n + 5[/tex]

  • [tex]4n - 1.5n = 5 + 4[/tex]

  • [tex]2.5n = 9[/tex]

  • [tex]n = \dfrac{9}{2.5} [/tex]

  • [tex]n = \dfrac{90}{25} [/tex]

  • [tex]n = \dfrac{18}{5} [/tex]

  • [tex]n \approx3.6[/tex]

I hope it helps ~
the answer is 3.6

work
4(n-1)=1.5n+5
4n-4=1.5n+5
4n=1.5n+9
2.5n=9
n=3.6