0.7/x-0.17-0.03/0.2x= 1
70-17X-15= 100x (同時乘以100x)
100x+17x= 70-15
x= 55/117
X分之0.7-0.17-0..2X分之0.03等于一,求X的值
X分之0.7-0.17-0..2X分之0.03等于一,求X的值
其他人氣:958 ℃時間:2020-01-29 07:35:05
優(yōu)質(zhì)解答
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