1
2
3
4
Correct answer is D
log3(x−y)=1⟹x−y=31=3....(1)
log3(2x+y)=2⟹2x+y=32=9.....(2)
From (1), y = x - 3
From (2), y = 9 - 2x
⟹9−2x=x−3
9+3=x+2x=3x
x=4
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