Question

X减5的绝对值加Y加3的绝对值等于0,求X加Y X减Y的值

Answer 1

|x-5|+|y+3|=0
x-5=0，y+3=0
x=5，y=-3

x+y
=5+(-3)
=5-3
=2

x-y
=5-(-3)
=5+3
=8

Answer 2

x+y=2 x-y=8 求采纳谢谢

Answer 3

由题意可得:|x-5|+|y+3|=0，因为|x-5|>=0且|y+3|>=0，所以x=5,y=-3,则x+y=2,x-y=8