\(x+3x=3.4\Rightarrow4x=3.4\Rightarrow x=3\)
\(\frac{x}{2}+36=54\Rightarrow\frac{x}{2}=18\Rightarrow x=36\)
\(x+23=45\Rightarrow x=22\)
Tk mk nha
Tìm X:
a,X + 3X=3.4
X+3X=12.
4X =12.
X =12:3
X =4.
b,\(\frac{X}{2}\)+ 36=54.
\(\frac{X}{2}\) =54-36
\(\frac{X}{2}\) 9.
X=9*2
X=18.
c,X+23=45
X=45-23.
X=22.
Đúng thì k cho mk nha.
a) x + 3x = 3 . 4
<=> 4x = 12
<=> x = 12 : 4
<=> x = 3
b) \(\frac{x}{2}+36=54\)
\(\Leftrightarrow\) \(\frac{x}{2}=18\)
\(\Leftrightarrow\) \(x=18\times2\)
\(\Leftrightarrow\) \(x=36\)