Answer: – q Step-by-step explanation: p – ( p + q ) = p – p – q = – q p – q – p = p – p – q = – q Common difference is – q. Log in to Reply

Answer:– q

Step-by-step explanation:p – ( p + q )

= p – p – q

= – q

p – q – p

= p – p – q

= – q

Common difference is – q.