x x 8,01 - x : 100 = x x 8,01 - x x 0,01 = x x (8,01 - 0,01) = x x 8 = 38 => x = 38 : 8 = 4,75 

giup minh voi minh can gap

a, X:0.25+X x 11=24

X x 4 + X x 11 = 24

X x (11 + 4) = 24

X x 15 = 24

X = 24 : 15

X = 1,6

b, 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`

a, X:0.25+X x 11=24

X x 4 + X x 11 = 24

X x (11 + 4) = 24

X x 15 = 24

X = 24 : 15

X = 1,6

b, 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

a. x * 8,01 - x : 100 = 38

=> x * 8,01 - x * 1/100 = 38

=> x * 8,01 - x * 0,01 = 38

=> x * (8,01 - 0,01) = 38

=> x * 8 = 38

=> x = 38 : 8

=> x = 4,75

b. 2,3 : 2,8 * x = 57,5

=> 23/10 : 28/10 * x = 115/2

=> 23/10 * 10/28 * x = 115/2

=> 23/28 * x = 115/2

=> x = 115/2 : 23/28

=> x = 70

c. 0,16 : (x : 3,5) = 2,8

=> x : 3,5 = 0,16 : 2,8

=> x : 3,5 = 4/25 : 28/10

=> x : 3,5 = 2/35

=> x = 2/35 * 3,5

=> x = 2/35 * 35/10

=> x = 1/5 = 0,2

a,  2,4,6,8

b,  1,3,5,7

c,  3,403;3,4045;3,4056;3,406;3,4034

d,  8

1.x=1,06;1,07;1,08;1,08;1,09;,1,10;1,11;1,12;..................................................................9,00

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

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

x . 8,01 - x : 100 = 38

=> x . 8,01 - x . 0,01 = 38

=> x . (8,01 - 0,01) = 38

=> x . 8 = 38

=> x = 38 : 8

=> x = 4,75

\(x\times8,01-x\div100=38\)

\(\Rightarrow\)\(x\times8,01-x\times0,01=38\)

\(\Rightarrow\)\(x\times\left(8,01-0,01\right)=38\)

\(\Rightarrow\)\(x\times8=38\)

\(\Rightarrow\)\(x=38\div8\)

\(\Rightarrow\)\(x=\frac{38}{8}=\frac{19}{4}=4,75\)

bằng 100 nha

=1406-1406+100

=0+100

=100

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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