实数x,y满足条件:(x+y)+(y-1)i=(2x+3y)+(2y+1)i则x+y=_.

问题描述:

实数x,y满足条件:(x+y)+(y-1)i=(2x+3y)+(2y+1)i则x+y=______.

∵:(x+y)+(y-1)i=(2x+3y)+(2y+1)i,

x+y=2x+3y
y−1=2y+1
,解得
x=4
y=−2

∴x+y=2,
故答案为:2.