X x 2/7 -2/3 = 1/2
X x2/7 =1/2+2/3
X x2/7 = 7/6
X = 7/6 : 2/7
X = 49/12
\(x.\frac{2}{7}-\frac{2}{3}=\frac{1}{2}\)
\(\frac{2x}{7}=\frac{1}{2}+\frac{2}{3}\)
\(\frac{2x}{7}=\frac{7}{6}\)
\(2x=7.7:6\)
\(2x=\frac{49}{6}\)
\(x=\frac{49}{12}\)
Tíck cho mìk vs nhá dao linh!
trả lời : X x2/7 -2/3 =1/2 X x 2/7 = 1/2+2/3 X x 2/7 = 7/6 X = 7/6 : 2/7 X = 49/12 vây X =49/12
\(x\times\frac{2}{7}-\frac{2}{3}=\frac{1}{2}\)
\(x\times\frac{2}{7}=\frac{1}{2}+\frac{2}{3}\)
\(x\times\frac{2}{7}=\frac{7}{6}\)
\(x=\frac{7}{6}\div\frac{2}{7}\)
\(x=\frac{49}{12}\)
Vậy x = \(\frac{49}{12}\)
\(x.\frac{2}{7}-\frac{2}{3}=\frac{1}{2}\)
\(\frac{2x}{7}=\frac{1}{2}+\frac{2}{3}\)
\(\frac{2x}{7}=\frac{7}{6}\)
\(x=\frac{7}{6}:\frac{2}{7}\)
\(x=\frac{49}{12}\)