14x - 6x = 2³ x 5²

        8x = 8 x 25

        8x = 200

          x = 200 : 8

          x = 25

14x - 6x = 2³ . 5²

8x = 200

=> x = 200 ÷ 8

=> x = 25

Vậy x = 25

1 / 5 x 2 ² + ( x + 3 ) = 5 ²

     20  +      ( x + 3 ) = 25

                     x + 3   = 5

                          x    = 2

2 / 3 ² x 2 + ( x + 25 ) = 10 ²

     18       + ( x + 25 ) = 100

                     x  + 25  = 82

                            x    = 57

3 / 2 ³ x 5 - ( x + 3 ² ) = 10

     40       - ( x + 9 )   = 10

                    x + 9     = 30

                         x      = 21

4 / 7 ² - 7 x ( 13 - x ) = 14

     49 - 7 x ( 13 - x ) = 14

           7 x ( 13 - x )  = 35

                    13 - x   = 5

                          x    = 8

5 / 14 x - 2 x 7 ² = 2 x 3  x 7

     14 x - 98       = 42

     14 x              = 140

          x              = 10

1/ 5 x 2² + ( x + 3 ) = 5²

2/ 3² x 2 + ( x + 25 ) = 10²

3/ 2³ x 5 - ( x + 3² ) = 10

4/ 7² - 7 x ( 13 - x ) = 14

5/ 14x - 2 x 7² = 2 x 3 x 7

1 / 5 x 2 ² + ( x + 3 ) = 5 ²

     20  +      ( x + 3 ) = 25

                     x + 3   = 5

                          x    = 2

2 / 3 ² x 2 + ( x + 25 ) = 10 ²

     18       + ( x + 25 ) = 100

                     x  + 25  = 82

                            x    = 57

3 / 2 ³ x 5 - ( x + 3 ² ) = 10

     40       - ( x + 9 )   = 10

                    x + 9     = 30

                         x      = 21

4 / 7 ² - 7 x ( 13 - x ) = 14

     49 - 7 x ( 13 - x ) = 14

           7 x ( 13 - x )  = 35

                    13 - x   = 5

                          x    = 8

5 / 14 x - 2 x 7 ² = 2 x 3  x 7

     14 x - 98       = 42

     14 x              = 140

          x              = 10

 nhé !

a) 14x - 9x + 54 = 13²

5x + 54 = 169

5x = 169 - 54

5x = 115

x = 115 : 5

x = 23

b) 218 + 2( x - 45 ) = (-12) + 418

218 + 2( x - 45 ) = +( 418 - 12 )

218 + 2( x - 45 ) = 406

2( x - 45 ) = 406 - 218

2( x - 45 ) = 188

x - 45 = 188 : 2

x - 45 = 94

x = 94 + 45

x = 139

c)\(|x-3|\) : 3² = 3⁰

( x - 3 ) : 9 = 1

=> x - 3 = 1 . 9

x - 3 = 9

x = 9 + 3

x = 12

a) 14x - 9x + 54 = 13²

=> ( 14 - 9 ) . x + 54 = 169

=> 5x + 54 = 169

=> 5x = 115

=> x = 23

b) 218 + 2( x - 45 ) = ( - 12 ) + 418

=> 218 + 2( x - 45 ) = 406

=> 2( x - 45 ) = 188

=> x - 45 = 94

=> x = 139

c) \(|x-3|:3^2=3^0\)

\(\Rightarrow|x-3|=9\)

\(\Rightarrow|x-3|=-9\)

\(\Rightarrow\orbr{\begin{cases}x-3=9\\x-3=-9\end{cases}}\)

\(\Rightarrow\orbr{\begin{cases}x=12\\x=-6\end{cases}}\)

a, 6x+x=5¹¹:5¹⁹+3¹

<=> 7x=3,00000256

sorry gửi nhầm .

\(a,6x+x=5^{11}:5^{19}+3^1\)

\(\Leftrightarrow7x=3,00000256\)

\(\Leftrightarrow x=0,428571794\) ( hình như đề sai )

\(b,7x-x=5^{21}:5^{19}+3.2^2-7^0\)

\(\Leftrightarrow6x=36\)

\(\Leftrightarrow x=6\)

cach lam trieu nguyen gia huy

Đáp án:       

        (50 – 6x).18   = 23 . 32 . 5

⇔    (50 – 6x).18    = 3680

⇔   50 – 6x            = 3680 : 18 = 1840918409 

⇔   6x                    = 50 - 1840918409 

⇔   6x                     = - 1390913909 

⇔   x                      = - 1390913909  : 6 = - 1390913909 . 1616

⇔  x                       = −69527−69527.

Vậy x = −69527−69527.

( 50 - 6x ) .18 = 2³ . 3² .5

( 50 - 6x ) . 18 = 8 . 9 . 5

( 50 - 6x ) . 18 = 360

50 - 6x = 360 : 18

50 - 6x = 20

6x = 50 - 20

6x = 30

x = 30 : 6

x = 5

6x+8=5+9

6x+8=14

6x=6

x=1

vậy.

6x+2.4=5^3:5^2+9

6x+8=5+9

6x+8=14

6x=14-8

6x=6

x=6:6

x=1

(5^3 là 5 mũ 3,5^2 là 5 mũ 2)

\(6x+2.4=5^3:5^2+9\)

\(6x=5+9-8\)

\(6x=6\)

\(x=1\)

6x+2.4=5\(^3\):5\(^2\)+9

6x+8=5+9

6x+8=14

6x=14-8

6x=6

x=6:6

x=1