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x÷7/5+1/5=4/5 (解方程)

x÷7/5+1/5=4/5 x÷7/5=4/5-1/5 x=3/5*7/5 x=21/25

x÷7/5+1/5=4/5 x÷7/5 = 4/5-1/5 x÷7/5 = 3/5x = 21/25

X÷7/5+1/5=4/5;X÷7/5=3/5;X=3/5*7/5;X=21/25

x÷5/6+1/5=4/5 解:X÷5/6=4/5-1/5 X÷5/6=3/5 x =3/5*5/6 X=1/2

15

x/(5/6)+1/5=4/56x/5=3/5x=1/2

(X-7)÷5=4 X-7=4*5 X=4*5+7=27

X÷7/5+1/5=4/5 解,X÷7/5=4/5-1/5 X÷7/5=3/5 X=3/5*7/5 X=21/25,等于25分之21

解:x÷5/6=4/5-1/5 x=3/5*5/6 x=1/2

是方程,X=7*5+4=39

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