Respuesta :
not sure how to count smartness to tell if I can answer qeustion but
remmber
a(b-c)=ab-ac
first do the parenthasees
3(x-5)=3x-15
now we have
2x+3x-15+9
5x-6
remmber
a(b-c)=ab-ac
first do the parenthasees
3(x-5)=3x-15
now we have
2x+3x-15+9
5x-6