Respuesta :

apologiabiology
use distributive property which is
a(b+c)=ab+ac so
3(2n+3)=6n+9

now we have
6n+9+9
add like terms
6n+18
we can leave it like this or undistribute 6
6(n+3)

so answer is
6n+18 or 6(n+3)

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