Question

Simplify combining like terms p-(p-q)-q-(q-p)

Answer 1

p-p+q-q-q+p
= p-p+p +q-q-q
= p-q

Answer 2

Hi ,

p - ( p - q ) - q - ( q - p )

= p - p + q - q - q + p

= p - p + p + q - q - q

= p - q

I hope this helps you.

:)