p -5qr ,7qr +q , -p - q
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Answer:
2qr
Step-by-step explanation:
p-5qr, 7qr+q, -p-q
p-5qr+7qr+q+(-p-q)
p-5qr+7qr+q-p-q
-5qr+7qr
2qr
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