(x-(x/7.5+x/5))/(x/5)=10/3

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(x-(x/7.5+x/5))/(x/5)=10/3

(x-(x/7.5+x/5))/(x/5)=10/3
(x-(x/7.5+x/5))/(x/5)=10/3

(x-(x/7.5+x/5))/(x/5)=10/3
等式左边,上下同乘以15可得
[15X-(2X+3X)]/(3X)=10/3
上式化简为10X/3=10/3
X=1