丨x-2y+6丨+根号3x-y-8=0,求x+y值
问题描述:
丨x-2y+6丨+根号3x-y-8=0,求x+y值
答
x-2y+6=0
3x-y-8=0
解得x=22/5,y=26/5
所以x+y=48/5