Answer:

Q= 4*(3n+3)=60

or,3n+3=60/4

or,3n+3=15

or,3n=15-3

or,3n=12

or,n = 12/3

or,n = 4

i hope this helps you

mark as brainliest

[tex]\\[/tex]

Verified answer

[tex]4(3n + 3) = 60[/tex]

[tex]12n + 12 = 60[/tex]

[tex]12n = 60 - 12[/tex]

[tex]12n = 48[/tex]

[tex]n = \frac{48}{12} [/tex]

[tex]n = 4[/tex]