tìm x : x4 + x = 55,35
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x4 + x = 55 , 35
x4 + x1 = 55 , 35
x x ( 1 + 4 ) = 55 , 35
x x 5 = 55 , 35
x = 55 , 35 : 5
x = 11 , 07
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
ta co X x 4 +X = 55,35
X x 5 = 55,35f
X=55,35 chia 5
ban tu tinh nha
![](https://rs.olm.vn/images/avt/0.png?1311)
\(x\times4\times x=55,35\)
\(x\times x=55,35:4\)
\(x\times x=13,8375\)
\(\Rightarrow x=3,719879....\)
![](https://rs.olm.vn/images/avt/0.png?1311)
x * 4 + 0 , 5 * x = 55 , 35
x * ( 4 + 0 , 5 ) = 55 , 35
x * 4, 5 = 55 , 35
x = 55 , 35 : 4 , 5
x = 12 , 3
Vậy x = 12 , 3
![](https://rs.olm.vn/images/avt/0.png?1311)
\(4x+\frac{1}{2}x=55,35.\)
\(\Leftrightarrow\left(4+\frac{1}{2}\right)x=55,35.\)
\(\Leftrightarrow4,5x=55,35\)
\(\Leftrightarrow x=12,3\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(x\cdot4+\frac{1}{2}\cdot x=55,35\)
\(x\cdot\left(4+\frac{1}{2}\right)=55,35\)
\(x\cdot\frac{9}{2}=55,35\)
\(x=12,3\)
sai đè bn ạ
x=11,07