Question

Subtract the sum of 3p-2q+2r,5p+3q-2r and -4p+2q-3r from the sum of 2p-3q-3r,4p-q-r and 3p-2q-3r.

Answer 1

first sum of 2p-3q-3r,4p-q-r and 3p-2q-3r
then
sum of 3p-2q+2r,5p+3q-2r and -4p+2q-3r
then
subtract