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数学
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4/5:(22-X)=2:3这道方程怎样解
不好意思不好意思,应该是4/5X:(22-X)=2:3
人气:314 ℃ 时间:2020-05-06 06:27:25
解答
4/5*3=(22-X)*2
两边同乘5:12=(22-X)*10
12=220-10X
10x=220-12
X=10.8
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2/5+X/4=17/2
6(x-1)=5(x+3)和0.2(3-x)=0.4(6-x)
解两道方程题;1/2[x-1/2(x+1)]=2/3 (x-1) 1/3(x-1)+1/4(x-1)-1/2(x-1)=1
8-x/22+x=1/5 急
解一道方程4+X=X*X
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