|x+y-5|+(x-y-3)=0,求x-y的值

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/10 17:14:36
|x+y-5|+(x-y-3)=0,求x-y的值|x+y-5|+(x-y-3)=0,求x-y的值|x+y-5|+(x-y-3)=0,求x-y的值x+y-5=0(1)x-y-3=0(2)(1)+(2)2

|x+y-5|+(x-y-3)=0,求x-y的值
|x+y-5|+(x-y-3)=0,求x-y的值

|x+y-5|+(x-y-3)=0,求x-y的值
x+y-5=0 (1) x-y-3=0 (2) (1)+(2) 2x-8=0 x=4 (1)-(2) y=1 x^2-y^2=16-1=15