Question 800135
Q+P=2(Q-P)

Q+P=2Q-2P

Q-3P=0

QP = 675
Q=675/P

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Q-3P=0

675/p -3p=0

675=-3p^2

3p^2=675
/3
p^2=225

p= +/- 15

Therefore P= 15

Now you can can complete