Question

tìm x :
5x+ x = 39 - 3¹¹: 3⁹

Answer 1

\(5x+x=39-3^{11}:3^9\)

\(\Leftrightarrow6x=39-3^2\)

\(\Leftrightarrow6x=39-9\)

\(\Leftrightarrow6x=30\)

\(\Leftrightarrow x=5\left(tm\right)\)

Vậy ..

Answer 2

5x + x = 39 - 3¹¹: 3⁹

6x = 39 - 3²

6x = 39 - 9

6x = 30

x = 30 : 6

x = 5.

Answer 3

5x + x = 39 - 3¹¹ : 3⁹

6x = 39 - 3²

6x = 39 - 9

6x = 30

x = 30 : 6

x = 5

Vậy x = 5.

Answer 4

5x + x = 39 - 3¹¹ : 3⁹

5x + x = 39 - 3²

5x + x = 39 - 9

5x + x = 30

5x + 1x = 30

(5 + 1)x = 30

6x = 30

x = 30 : 6

x = 5

Answer 5

Đây e nhé!                                                                         Ta có: 

6x = 39 - 3²

6x = 39 - 9

6x = 30

x = 30 : 6

x = 5

Vậy x = 5.

Answer 6

5x + x = 39 - 3¹¹: 3⁹

6x = 39 - 3²

6x = 39 - 9

6x = 30

x = 30 : 6

x = 5