若(4x-3)²+|2y+1|=0,则x+2y=
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若(4x-3)²+|2y+1|=0,则x+2y=
若(4x-3)²+|2y+1|=0,则x+2y=
若(4x-3)²+|2y+1|=0,则x+2y=
(4x-3)²+|2y+1|=0
则4x-3=0
2y+1=0
则x=3/4 y=-1/2
x+2y=3/4+2*(-1/2)=1/4