Question

give explanation pls​

Answer 1

Answer:

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

p-p+q-q-q+p

2p-p+q-2q

p-q

Step-by-step explanation:

first we break the bracket

next we add the positive p (we get 2p) and write the negative p next to it (2p-p)

next we keep the positive q and add the two negative q, we get (+q-2q)

then we do the simplification

we get (p-q) as solution