7p+2q-3r+5 + 2p-3q-7r+11
Sukh1432:
7p + 2q - 3y + 5 + 2p - 3q -7r + 11 7p + 2p + 2q - 3q - (3r - 7r) + 5 + 11 9p - 1q - 10r + 16
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Answer:
9p - q -10r +16
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