(X/2)+(Y/3)+(Z/5)≈1.77
1个回答
X=1,Y=2,Z=3
1/2+2/3+3/5=1.76666...≈1.77
相关问题
3x-5y+2z=1 4x+5y-z=5 x-5y+3z=-2
x-5y-3z=0 y+z-3x=3 x+y+3z=14 y+4z=3 z+x-3y=5 2x+y+z=7 2x-z=1
解三元一次方程组1)2x+y-3z=3,3x-y+2z=1,x-y-z=5 2)x:y=3:2,y:z=5:4,x+y+
x、y、z满足3x+2y+z=5,2x+y-3z=1.
x+y+z=3(1) x+2y+3z=6(2) 2x+y+2z=5(3)
y=x-3,5x+3y+2z=1,x+z=-1
3x+2y+z=14 ,x+y+z=10,z+2x+3y=1 5
方程 {3x+3y+z=6 {x-y-2z=-1 {x+2y-z=5
x+y+2z=0 2X-y+z=1 x+2y-3z=5