Mọi người giúp em câu này với ạ Tìm x biết (3$\frac{5}{7}$.x-1$\frac{5}{7}$.x)- $\frac{1}{3}$= $\frac{2}{3}$
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`(3 5/(7)x-1 5/(7)x)-1/3=2/3`
`→26/(7)x-12/(7)x=2/3+1/3`
`→(26/7-12/7)x=1`
`→2x=1`
`→x=1/2`
Vậy `x=1/2`
2x=$\frac{2}{3}$ + $\frac{1}{3}$
2x= 1
x= $\frac{1}{2}$