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y:100+y*0,99=15
=>y*0,01+y*0,99=15
=>\(y\left(0,01+0,99\right)=15\)
=>\(y\cdot1=15\)
=>y=15
![](https://rs.olm.vn/images/avt/0.png?1311)
3,45 x 0,99 + 3,45 : 100
= 3,45 x 0,99 + 3,45 x 0,01
= 3,45 x ( 0,99 + 0,01 )
= 3,45 x 1
= 3,45
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(0,25\times0,99+0,25:100\)
\(=0,25\times0,99+0,25\times0,01\)
\(=0,25\times\left(0,99+0,01\right)\)
\(=0,25\times1\)
\(=0,25\)
0,25*0,99+0,25:100
=0,25*0,99+0,25*0,01
=0,25*(0,99+0,01)
=0,25*1
=0,25
![](https://rs.olm.vn/images/avt/0.png?1311)
X . 0,99 + X : 100 = 2016
\(X.\frac{99}{100}+X.\frac{1}{100}=2016\)
\(X.\left(\frac{99}{100}+\frac{1}{100}\right)=2016\)
\(X.1=2016\)
x = 2016
X x 0,99 + X : 100 = 2016
X x 0,99 + X x 0,01 = 2016
X x ( 0,99 + 0,01 ) = 2016
X x 1 = 2016
X = 2016 : 1
X = 2016
Vậy X = 2016
![](https://rs.olm.vn/images/avt/0.png?1311)
\(x\) \(\times\) 0,99 + \(x\) : 100 = 200,06
\(x\) \(\times\) 0,99 + \(x\) \(\times\) 0,01 = 200,06
\(x\) \(\times\) (0,99 + 0,01) = 200,06
\(x\) \(\times\) 1 = 200,06
\(x\) = 200,06
\(\frac{1}{100}+0,99-1=\frac{1}{100}+\frac{99}{100}-1=1-1=0\)
#Y/n
= 0
Học tốt~