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![](https://rs.olm.vn/images/avt/0.png?1311)
a) x:0,25+x.11=24
x.4+x.11 =24
x.(4+11) =24
x.15 =24
x=24:15
x=1,6
Trả lời :....................
x = 16.................................
Hk tốt,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
![](https://rs.olm.vn/images/avt/0.png?1311)
a, x :0,25+x.11=24
x:1/4+x.11=24
x.4+x.11=24
x.(4+11)=24
x.15=24
x =24:15
x=1,6
b, x.8,01-x:100=38
x.801/100-x.1/100=38
x.(801/100-1/100)=38
x.8=34
x=34:8
x=4,25
![](https://rs.olm.vn/images/avt/0.png?1311)
x x 8,01 – x :100 = 38
x x 8,01 - x : 0,01=38
x x (8,01 - 0,01) = 38
x x 8 = 38
x = 38 : 8
x=4,75
![](https://rs.olm.vn/images/avt/0.png?1311)
X x 8,01 - X : 100 = 38
X x 8,01 - X x 0,01 = 38
X x (8,01 - 0,01 ) = 38
X x 8 = 38
X = 38 :8
X = 4,75
![](https://rs.olm.vn/images/avt/0.png?1311)
x*8,01-x:100=38
x*8,01-x*1/100=38
x*(801/100-1/100)=38
x*800/100=38
x*8=38
x = 38:8
x =4,75
k cho mình nha
![](https://rs.olm.vn/images/avt/0.png?1311)
a) X : 0,25 + X x 11 = 24
X x 4 + X x 11 = 24
X x (4 + 11) = 24
X x 15 = 24
X = 24 : 15
X = 1,6
b) X x 8,01 - X : 100 = 38 ( Sửa - thành =)
X x 8,01 - X x 0,01 - 38
X x ( 8,01 - 0,01)=38
X x 8 = 38
X= 38 : 8
X=4,75
a) X : 0,25 + X x 11 = 24
X x 4 + X x 11 = 24
X x (4 + 11) = 24
X x 15 = 24
X = 24 : 15
X = 1,6
b) X x 8,01 - X : 100 = 38 ( Sửa - thành =)
X x 8,01 - X x 0,01 - 38
X x ( 8,01 - 0,01)=38
X x 8 = 38
X= 38 : 8
X = 4,75
c) 2,3 : ( 2,8 : X ) = 57,5
2,8 : X = 2,3 : 57,5
2,8 : X = 0,04
X = 2,9 : 0,04
X = 70
d) 0,16 : ( X : 3,5 ) = 2,8
0,16 : X x 3,5 = 28
0,16 : X = 2,8 : 3,5
0,16 : X = 0,8
X = 0,16 : 0,8
X = 0,2
![](https://rs.olm.vn/images/avt/0.png?1311)
X x 8,01 - X :1/100=38
X x ( 8,01 - 0.01 ) = 38
X x 8 = 38
X = 4.75
![](https://rs.olm.vn/images/avt/0.png?1311)
a) \(x\times8,01-x:100=38\)
\(x\times8,01-x\times0,01=38\)
\(x\times\left(8,01-0,01\right)=38\)
\(x\times8=38\)
\(x=38:8\)
\(x=4,75\)
b) \(x\times3,9+x:10=2,7\)
\(x\times3,9+x\times0,1=2,7\)
\(x\times\left(3,9+0,1\right)=2,7\)
\(x\times4=2,7\)
\(x=2,7:4\)
\(x=0,675\)
c) \(12,3:x-4,5:x=15\)
\(\left(12,3-4,5\right):x=15\)
\(7,8:x=15\)
\(x=7,8:15\)
\(x=0,52\)
![](https://rs.olm.vn/images/avt/0.png?1311)
X x 8,01 - x : 100 = 38
=> \(x\times8,01-x\times0.01=38\)
\(\Rightarrow x\left(8,01-0,01\right)=38\)
\(\Rightarrow x.8=38\)
\(\Rightarrow x=38:8\)
\(\Rightarrow x=4,75\)