5x+x=39-3¹¹:3⁹

6x = 29 - 3²

6x = 29-9

6x =20

x =\(\frac{10}{3}\)

5

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

\(5x+x=39-3^2\)\(5x+x=39-9=30\)

\(6x=30\)

\(x=30:6=5\)

Chúc bn hok tốt ....

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

\(5x+x=39-9\)

\(5x+x=30\)

\(\Leftrightarrow x.\left(5+1\right)=30\)

\(x.6=30\)

\(\Rightarrow x=5\)

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

\(6x=39-3^2\)

\(6x=39-9\)

\(6x=30\)

\(x=30:6\)

\(x=5\)

Vậy \(x=5\)

Tham khảo nhé~

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

\(5x+x=39-9\)

\(5x+x=30\)

\(\Rightarrow5x+1x=30\)

\(x.\left(5+1\right)=30\)

\(x.6=30\)

\(\Rightarrow x=5\)

Nhớ k nhé !!!! 

^-^

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

\(x\left(5+1\right)=39-3^2\)

\(6x=39-9\)

\(6x=30\)

\(x=30:6\)

\(x=5\)

Vậy x = 5

Nhớ k cho mình nhé! Thank you!!!

(2x+1).(x-3) lớn hơn hoặc bằng 0,hãy tìm x

thanks nha

b ) 5x + x = 39 - 3²

=> 6x = 39 - 9

6x = 30

x = 30 : 6

x = 5

a ) 5x + 3x = 3⁶ : 3² . 4 + 12

=> 8x = 3^6-2 . 4 + 12

8x = 3⁴ . 4 + 12

8x = 81 . 4 + 12

8x = 324 + 12

8x = 336

x = 336 : 8

x = 42

k nha !

1) 8x = 81 x 4 + 12

    8x = 324 + 12

    8x = 336

      x = 336 : 8

      x = 42
2) 6x = 30

      x  = 30 : 6

      x  = 5

nha ^^

5x + x = 39 - 3¹¹ : 3⁹

6x = 39 - 3² = 39 - 9 = 30

x = 30 : 6 = 5

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

\(6x=39-3^2\)

\(6x=30\)

\(x=5\)

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

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

\(\Leftrightarrow6x=39-9\)

\(\Leftrightarrow6x=30\)

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

Vậy ..