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y + y + y : 0,5 + y : 0,25 + y : 0,125 = 15
y x 2 + y x 2 + y x 4 + y x 8 = 15
y x (2 + 2 + 4 + 8) = 15
y x 16 = 15
y = 15 : 16
y = 0,9375
k cho tớ nhé
y + y + y : 0.5 + y : 0.25 + y :0.125 = 15
yx2+yx1/2+yx1/4+yx1/8=15
yx(2+1/2+1/4+1/8)=15
yx23/8=15
y=15:23/8=120/23
![](https://rs.olm.vn/images/avt/0.png?1311)
yx1+yx2+yx8=15
yx(1+2+8)=15
yx11=15
y=15:11
y=15/11
y + y : 0 , 5 + y : 0 , 125 = 15
y + y x 2 + y x 8 = 15
y x ( 1 + 2 + 8 ) = 15
y x 11 = 15
y = 15 : 11
y = 15/11
Chúc học tốt !!!
![](https://rs.olm.vn/images/avt/0.png?1311)
\(y\div0,125+y\div0,5+y=9,9\)
\(y\times8+y\times2+y=9,9\)
\(y\times\left(8+2+1\right)=9,9\)
\(y\times11=9,9\)
\(y=9,9\div11\)
\(y=0,9\)
![](https://rs.olm.vn/images/avt/0.png?1311)
y + y : 0,5 + y : 0,25 + y + 0,125 = 15
=> y + y x 2 + y x 4 + y x 8 = 15
=> y x 1 + y x 2 + y x 4 + y x 8 = 15
=> y x (1 + 2 + 4 + 8) = 15
=> y x 15 = 15
=> y = 15 : 15
=> y = 1
![](https://rs.olm.vn/images/avt/0.png?1311)
y : 1 + y : 0,25 + y : 0,125 = 15
y : ( 1 + 0,25 + 0,125 ) = 15
y : 1,375 = 15
y = 15 : 1,375
y=8
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
Y+Y:0,125=7,29
Yx1+Yx8 =7,29
Yx(1+8) =7,29
Y x 9 =7,29
Y =7,29:9
Y =0,81
Thấy em gái trong ảnh xinh ho