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5x+x=39-311:39
6x = 29 - 32
6x = 29-9
6x =20
x =\(\frac{10}{3}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(5x+x=39-3^{11}:3^9.\)
\(5x+x=39-9\)
\(5x+x=30\)
\(\Leftrightarrow x.\left(5+1\right)=30\)
\(x.6=30\)
\(\Rightarrow x=5\)
\(5x+x=39-3^{11}:3^9\)
\(6x=39-3^2\)
\(6x=39-9\)
\(6x=30\)
\(x=30:6\)
\(x=5\)
Vậy \(x=5\)
Tham khảo nhé~
![](https://rs.olm.vn/images/avt/0.png?1311)
5x + x = 39 - 311 : 39
6x = 39 - 32 = 39 - 9 = 30
x = 30 : 6 = 5
![](https://rs.olm.vn/images/avt/0.png?1311)
\(5x+x=39-3^{11}:3^9\)
\(\Leftrightarrow6x=39-3^2\)
\(\Leftrightarrow6x=39-9\)
\(\Leftrightarrow6x=30\)
\(\Leftrightarrow x=5\left(tm\right)\)
Vậy ..
![](https://rs.olm.vn/images/avt/0.png?1311)
\(5x+x=39-3^{11}:3^9\)
\(\Leftrightarrow6x=39-3^2\)
\(\Leftrightarrow6x=39-9\)
\(\Leftrightarrow6x=30\)
\(\Leftrightarrow x=5\)
![](https://rs.olm.vn/images/avt/0.png?1311)
đề thế này phải ko?
5x + x + 39 = 311 : 39
5x + x + 39 = 311-9
5x + 1x + 39 = 32
(5+1)x + 39 = 9
6x = 9 + 39
6x = 48
x = 48 : 6
x = 8
đúng ko?
![](https://rs.olm.vn/images/avt/0.png?1311)
\(5x+x=39-3^{11}:3^9\)
\(\Leftrightarrow6x=39-3^2\)
\(\Leftrightarrow6x=39-9\)
\(\Leftrightarrow6x=30\)
\(\Leftrightarrow x=5\left(tm\right)\)
Vậy ..
5x + x = 39 - 311: 39
6x = 39 - 32
6x = 39 - 9
6x = 30
x = 30 : 6
x = 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 ....