解方程1/5x+1/10x)/(x-1/5x)=3/8
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解方程1/5x+1/10x)/(x-1/5x)=3/8解方程1/5x+1/10x)/(x-1/5x)=3/8解方程1/5x+1/10x)/(x-1/5x)=3/8(1/5x+1/10x)/(x-1/5
解方程1/5x+1/10x)/(x-1/5x)=3/8
解方程1/5x+1/10x)/(x-1/5x)=3/8
解方程1/5x+1/10x)/(x-1/5x)=3/8
(1/5x+1/10x)/(x-1/5x)=3/8
1/5x+1/10x=3/8*(x-1/5x)
2+1=6/8(x-1) (全式乘10x)
24=6x-6
x=5
5
(1/5x+1/10x)/(x-1/5x)=3/8
左边分子分母同乘以10x得
(2+1)/(10x^2-2)=3/8
两边分子相同,分母必相同,即
10x^2-2=8
10x^2=10
x^2=1
x=±1
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