Respuesta :
12p+5pd−3p+6pd
=12p+5dp+−3p+6dp
Combine Like Terms:
=12p+5dp+−3p+6dp
=(5dp+6dp)+(12p+−3p)
=11dp+9p
[tex]12p+5pd-3p+6pd\\\\Use\ commutative\ property:a+b=b+a\\and\ associative\ property:(a+b)+c=a+(b+c)\\\\=(12p-3p)+(5pd+6pd)=\huge\boxed{9p+11pd}[/tex]
