·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等于几

来源：学生作业帮助网编辑：六六作业网时间：2024/12/20 05:16:26

·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等于几·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等于几·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等

·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等于几
·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等于几

·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等于几
x.y互为相反数,则x+y=0
（x+y+3)(x-y-2)=6
(0+3)(2x-(x+y)-2)=6
3(2x-2)=6
x-1=1
x=2
x=2时,原式成立

·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等于几若x、y互为相反数,且2x-3y=5,则x+y=? 若X,Y互为相反数,且(X+Y+3)(X-Y-2)=0,求X,Y的值? x y互为相反数且x+3y=4,3x-2y= ：已知x与y互为相反数,且2x-y=3,则x-y= 若x,y互为相反数,且x+3y=4,求3x-2y的值若X、y互为相反数,且X十3y=4,3X—2y=? 若2x-3y= -10,且x,y互为相反数,则(x+1(y-3)得多少? 若x与y互为相反数,且2x-3y=5,则x+3y2 = 若x,y互为相反数且y不等于0,则x+y+y分之x的值为? 若|2X-3|与|Y+3|互为相反数,求X+Y的相反数. 若|2x-3丨与|y+3l互为相反数,求x+y的相反数若x、y互为相反数,则x+2x+3x+...100x+100y+99y+98y+...+y 若x,y为实数,且根号x+2与y-3的绝对值互为相反数,则xy为多少若x,y互为相反数,且(x+1)²-(y+3)²=8,则xy= 若x和y互为相反数,则3x-10+3y+y/5x= 若|x+3|与|2y-3|互为相反数,求x+y:x-y的值如题若｜x-y-5｜与｜2x+3y-15｜互为相反数,则x+y＝?