Question

What's 12p+5pd-3p+6pd

Answer 1

12p+5pd−3p+6pd

=12p+5dp+−3p+6dp

Combine Like Terms:

=12p+5dp+−3p+6dp

=(5dp+6dp)+(12p+−3p)

=11dp+9p

Answer 2

`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}`