Add the following expressions -: 2p+3r+4q,7r+3p-2q,q-r-p,5p+4q-8r step by step explanation ?​

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1. 2p+3r+4q,7r+3p-2q,q-r-p,5p+4q-8r

   Step-by-step explanation:

   =2p+3r+4q,7r+3p-2q,q-r-p,5p+4q-8r

   =2p+3r+4q+7r+3p-2q+q-r-p+5p+4q-8r

   =(2p+3p+5p)+(3r+7r-r-8r)+(4q-2q+q+4q)

   =(10p)+(10r-9r)+(9q-2q)

   == 10p+r+7q

   answer mark as helpfull

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