(6.X-39):3=201

=>6.X-39=201:3

=>6.X-39=67

=>6.X=67+39

=>6.X=106

=>X=106:6

=>X=53/3

(6x-39):3=201

6x-39=201*3

6x-39=603

6x=603+39

6x=642

x=642:6

x=107

( 6x - 39) : 3 = 201 

\(\Leftrightarrow6x-39=603\)

\(\Leftrightarrow6x=642\)

\(\Leftrightarrow x=107\)

23+3x=5⁶:5³

\(\Leftrightarrow23+3x=5^3\)

\(\Leftrightarrow3x=125-23\)

\(\Leftrightarrow3x=102\)

\(\Leftrightarrow x=34\)

( 6x - 39 ) :3 = 201

6x - 39 = 201 x 3

6x - 39 = 603

6x = 603 +39

6x = 742

x = 742 :6

x =122

chắc là đúng. Bạn nên thử lại

Dễ mà :

a,\(\text{( 6x - 39) : 3 = 201 }\)

\(\Rightarrow6x-39=603\)

\(\Rightarrow6x=642\)

\(\Rightarrow x=107\)

b, \(23+3x=5^6:5^3\)

\(\Rightarrow23+3x=125\)

\(\Rightarrow3x=102\)

\(\Rightarrow x=34\)

\(\left(6x-39\right)\div3=201\)

\(6x-39=201.3\)

\(6x-39=603\)

\(6x=603+39=642\)

\(\Rightarrow x=642\div6=107\)

\(23+3x=5^6\div5^3\)

\(23+3x=5^{6-3}\)

\(23+3x=5^3=125\)

\(3x=125-23\)

\(3x=102\)

\(\Rightarrow x=34\)

\(541+\left(218-x\right)=735\)

\(218-x=735-541\)

\(218-x=194\)

\(x=218-194\)

\(x=24\)

\(5\left(x+35\right)=515\)

\(x+35=515\div5\)

\(x+35=103\)

\(x=103-35\)

\(x=68\)

(6x - 39):3=201

6x:3 - 39 :3=201

2x - 13 =201

2x=201+13

2x=214

x=214:2

x=107

(6x-39)=201*3=603

6x=603+39=642

x=642:6=107

(6x-39):3=201

6x-39=201*3

6x-39=603

6x=603+39

6x=642

x=642:6

x=107

(6x-39)/3=201

6x-39=201.3

6x-39=603

6x=603+39

6x=642

x=642/6

x=107

Ta có: (6x – 39) : 3 = 201

6x – 39 = 201 . 3

6x – 39 = 603

6x = 603 + 39

6x = 642

x = 642 : 6

x = 107

X x 13 = 39

X = 39 : 13

X = 3

( x - 15 ) - 75 = 0

x - 15 = 0 + 75

x - 15 = 75

x = 75 + 15

x = 90

6x - 39 = 201

6x = 201 + 39

6x = 240

x = 40

X x 13 = 39

X = 39 : 13

X = 3

( x - 15 ) - 75 = 0

x - 15 = 0 + 75

x - 15 = 75

x = 75 + 15

x = 90

6x - 39 = 201

6x = 201 + 39

6x = 240

x = 240 : 6

x = 40

575 - ( 6x +70 ) = 445

6x + 70 = 575 - 445

6x + 70 = 130

6x = 130 - 70

6x = 60

x = 60 : 6

x = 10

X x 13 = 39

X = 39 : 13

X = 3

( x - 15 ) - 75 = 0

x - 15 = 75

x = 75 - 15

x = 50

6x  - 39 = 201

6x = 162

x = 162 : 6

x = 27

575 - ( 6x +70 ) = 445

6x + 70 = 575 - 445

6x + 70 = 130

6x = 60

x = 10

\(\left(6x-39\right):3=201\)

\(6x-39=201.3\)

\(6x-39=603\)

\(6x=603+39\)

\(6x=642\)

\(x=642:6\)

\(x=107\)

(6x - 39) : 3 = 201

6x - 39        = 201 . 3

6x - 39        = 603

6x              = 603 + 39

6x              = 642

x                = 642 : 6

x                = 107

(6x-39):3=201

  6x-39=603

  6x=642

    x=107

bạn Công chúa nguyễn làm thiếu bước dòi nè!!