若4x²+9y²-12x+6y+10=0,则x+y=A.1/6 B.7/6 C.11/6 D.5/6

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若4x²+9y²-12x+6y+10=0,则x+y=A.1/6 B.7/6 C.11/6 D.5/6
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若4x²+9y²-12x+6y+10=0,则x+y=A.1/6 B.7/6 C.11/6 D.5/6
若4x²+9y²-12x+6y+10=0,则x+y=
A.1/6 B.7/6 C.11/6 D.5/6

若4x²+9y²-12x+6y+10=0,则x+y=A.1/6 B.7/6 C.11/6 D.5/6
(2X-3)+(3Y+1)=0 X=3/2 Y=1/3 选B