题目内容
已知2x=3y,则
(1)=________,
(2)=________,
(3)=________.
已知A=2x+3y,B=1,则
①当2x+3y-1=0时,A________.
②当2x+3y-1>0时,A________.
③当2x+3y-1<0时,A________.
已知(2x+3y-18)2+|4x+5y-32|=0,则4x-3y=________.
已知(2x+3y-18)2+|4x+5y-32|=0,则4x-3y的值等于________.