\(\dfrac{21}{5}+3:\left|\dfrac{x}{4}-\dfrac{2}{3}\right|=6\)
\(\Rightarrow3:\left|\dfrac{x}{4}-\dfrac{2}{3}\right|=6-\dfrac{21}{5}=\dfrac{9}{5}\)
\(\Rightarrow\left|\dfrac{x}{4}-\dfrac{2}{3}\right|=\dfrac{5}{3}\)
+) \(\dfrac{x}{4}-\dfrac{2}{3}=\dfrac{5}{3}\)
\(\Rightarrow\dfrac{x}{4}=\dfrac{7}{3}\Rightarrow3x=7.4\)
\(\Rightarrow x=\dfrac{28}{3}\)
+) \(\dfrac{x}{4}-\dfrac{2}{3}=-\dfrac{5}{3}\)
\(\Rightarrow\dfrac{x}{4}=-1\Rightarrow x=-4\)
Vậy.............................................
có phải đề này :21/5+3: x/4 -2/3 =6 không nếu vâỵ để mình giải dùm nhé
21/5+3: x/4 -2/3 =6
<=>3:x/4=37/15
=>x/4=45/37
x=180/37
