解方程：x-40%x=60,2x+10%=2.1,8+52%x=34，x-25%x=3/8

关于寒假啊！！！！

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x-40%x=60
0.6x=60
x=100

2x+10%=2.1
2x=2
x=1

8+52%x=34
0.52x=26
x=50

x-25%x=3/8
两边橡物陵梁戚同乘以8 得
8x-2=3
8x=5
x=5/蚂李8

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X=100,10,50,0.5

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100,1.1,50,0.5

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