已知有理数x,y满足1/2│x-2y│=-2│x-4│,求4x∧2-3y
已知有理数x,y满足1/2│x-2y│=-2│x-4│,求4x∧2-3y
已知有理数X,Y满足1/2│X-Y│+┃Y-1/2┃=0,求3X-7Y的值.
已知有理数x,y满足│3x-6│+(1/2y-2)^2=0,求x^y得值
已知有理数x,y满足1/2|x-y|+|y-1/2|=0 求3x+7y
已知有理数x、y、z满足条件|x-z-2|+(3x-6y-7)^2+|3y+3z-4|=0,求x、y、z
1.已知x,y,z满足2│x-y│+(根号2y-z)+z平方-z+(1/4)=0,求x,y,z值.
已知实数x.y满足根号(x+y-8)+根号(8-x-y)=根号(3x-y-4)+根号(x-2y+7),求x,y
已知x,y满足y^4+2x^4+1=4x^2y,求x,y的值
已知x,y是有理数,且满足|3-x|+|y+15|=0,求3x+2y的值
已知x.y是有理数,且满足/3-x/+/y+15/=0 求3x+2y的值
请帮忙计算:已知有理数X,Y满足/x-2/+/y+1/=0,求X与Y的值.
已知x,y是有理数,且满足(2x-y+1)²+|5x-2y-3|=0,求x,y的值.