解方程组x比y比z=2比3比5,2x-y+3z=32
人气:172 ℃ 时间:2020-03-26 18:10:04
解答
x=2/3y
z=5/3y
2x-y+3z=32
4/3y-y+5y=32
16/3y=32
y=6
z=2/3x6=4
z=5/3x6=10
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