\(\Rightarrow x+\frac{1}{5}+\frac{7}{10}=\frac{7}{3}\)
\(\Rightarrow x+\frac{9}{10}=\frac{7}{3}\)
\(\Rightarrow x=\frac{7}{3}-\frac{9}{10}\)
\(\Rightarrow x=\frac{43}{30}\)
x : 1/5 + 7/10 = 2 và 1/3
x : 1/5 + 7/10 = 7/3
x : 1/5 = 7/3 - 7/10
x : 1/5 = 49/30
x = 49/30 .1/5
x = 49/150
ĐÚng nha