X+X:0,5+X:0,25+X:0,125=5
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\(x+x:0,5+x:0,25+x:0,125=5\)
\(< =>x+x.\frac{1}{2}+x.\frac{1}{4}+x.\frac{1}{8}=5\)
\(< =>x.\left(1+\frac{1}{2}+\frac{1}{4}+\frac{1}{8}\right)=5\)
\(< =>x.\frac{15}{8}=5< =>\frac{15x}{8}=5\)
\(< =>15x=40< =>x=\frac{40}{15}=\frac{8}{3}\)
x + x : 0,5 + x : 0,25 + x : 0,125 = 5
x + x . 2 + x . 4 + x . 8 = 5
x . ( 1 + 2 + 4 + 8 ) = 5
x . 15 = 5
x = 5 : 15
x = \(\frac{1}{3}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) (1,25 - 0,25 x 5) x (1,1 x 1,2 x 1,3 x 1,4 x 1,5)
= ( 1,25 - 1,25 ) x (1,1 x 1,2 x1,3 x 1,4 x 1,5)
= 0 x (1,1 x 1,2 x 1,3 x 1,4 x 1,5 )
= 0
![](https://rs.olm.vn/images/avt/0.png?1311)
x : 0,125 + x : 0,5 + x : 0,25 = x : 0,5 + 165
x : 8 + x : 2 + x : 4 = x : 2 + 165
x : x : 8 + x : 2 + x : 4 = 2 + 165
1 : 8 + x : 2 + x : 4 = 167
8 + x : [ 2 + 4 ] = 167
8 + x : 6 + 167
x : 6 = 167 - 8
x : 6 = 159
x = 159 : 6
x = 26.5
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
X : (1+0,5+0,25+0,125)=2022
X : 1,875 = 2022
X = 1078,4
x+x:0,5+x:0,25+x:0,125 = 2022
x.(1+1/2+1/4+1/8) = 2022
x.15/8 = 2022
x = 2022: 15/8
x = 1078,4
![](https://rs.olm.vn/images/avt/0.png?1311)
X+X:0,5+X:0,25+X:0,125=5
X+X x 2+ X x 4 + X x 8 =5
X x (1+2+4+8)=5
X x 15 =5
X=5 : 15
X=\(\frac{1}{3}\)
Vậy X=\(\frac{1}{3}\)
x + x : 0,5 + x : 0,25 + x : 0,125 = 5
=> x + x . 2 + x . 4 + x . 8 = 5
=> x(1 + 2 + 4 + 8) = 5
=> x.15 = 5
=> x = 5 : 15
=> x = 1/3