2/x=3/y=5/z,2x+y+3z=22,求x+2y+z的值_数学解答

2/x=3/y=5/z,2x+y+3z=22,求x+2y+z的值

人气：214 ℃　时间：2020-03-23 12:56:27

解答

设2/x=3/y=5/z=K X=2/K,Y=3/K,Z=5/K 2x+y+3z=22 4/K+3/K+15/K=22 K=1 X=2,Y=3,Z=5 x+2y+z=2+3+5=10