已知|x+5|与(x+2y-3)^2互为相反数,则x= y=

已知|x+5|与(x+2y-3)^2互为相反数,则x= y=
已知|x+5|与(x+2y-3)^2互为相反数,则x= y=

已知|x+5|与(x+2y-3)^2互为相反数,则x= y=
|x+5|与(x+2y-3)^2互为相反数
且他们本身都大于等于0 要互为相反数 只能他们都为0
所以x+5=0
x=-5
x+2y-3=0
所以y=4

|x+5|=0,则x=-5
(x+2y-3)^2=0,则x+2y=3,y=4

x=-5,y=4