simplify combining like terms - p-(p-q)-q-(q-p)
-p-(p-q)-q-(q-p)
= -p-p+q-q-q+p ( multiplying + and - )
= -p-p+p-q-q+q ( grouping like terms )
= -p-q
So answer is -p-q
So Answer is
simplify combining like terms - p-(p-q)-q-(q-p)
-p-(p-q)-q-(q-p)
= -p-p+q-q-q+p ( multiplying + and - )
= -p-p+p-q-q+q ( grouping like terms )
= -p-q
So answer is -p-q
So Answer is