已知√(2x)=√(2y-1)+√(2z-1)和√(3y)=√(3z-1)+√(3x-1)和√(4z)=√(4x-1)+√(4y-1)则x+y+z=
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已知实数x,y,z满足2|x-y|+√2y+z+z2-z+1/4=0求x+y+z的值
已知实数xyz满足|x-2y|+2√(2y+z)+z-2z+1=0,求x+y+z的值
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已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值
已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值
已知实数x、y、z满足丨4x-4y+1丨+1/3√2y+z+(z-½)²=0,求(y+z)·x²的平方根
已知|x-1|+(y+3)²+√(x+y+z)=0,求4x+3y+2z的值
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已知:x^2/(z+y)+y^2/(x+z)+z^2/(x+y)=0,求x/(z+y)+y/(x+z)+z/(x+y)的值.