20/1:15/1=x:4
(1/15)x=4/20
x=3.
2. x/8=1:4
4x=8
x=2.
3. (x--1):5/23=0.15:5/23
x--1=0.15
x=1.15.
20/1:15/1=X:4 X/8=1:4 (X-1):5/23=0.1:5/23第一个绝
20/1:15/1=X:4 X/8=1:4 (X-1):5/23=0.1:5/23第一个绝
20/1:15/1=X:4X/8=1:4(X-1):5/23=0.1:5/23第一个绝对采纳!急需!
20/1:15/1=X:4X/8=1:4(X-1):5/23=0.1:5/23第一个绝对采纳!急需!
数学人气:494 ℃时间:2020-06-13 20:59:03
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