已知有理数x,y,z满足|x-z-2|+|3x-6y-7|+(3y+3z-40)^2=0,求x,y,z的值

分类: 作业答案 • 2023-01-03 08:46:15

问题描述：

答

|x-z-2|+|3x-6y-7|+(3y+3z-40)^2=0
x-z-2 = 0, 3x-6y-7 = 0,3y+3z-40 = 0
x = 11, y = 13/3, z= 9