4/3 - 1/3 . (X - 1 ) = 1
1.(X -1) = 1
X -1 = 1:1
X - 1 = 1
X = 1 + 1
X = 2
\(\frac{4}{3}-\frac{1}{3}\left(x-1\right)=1\)
\(\frac{1}{3}\left(x-1\right)=\frac{4}{3}-1\)
\(\frac{1}{3}\left(x-1\right)=\frac{1}{3}\)
\(x-1=1\)
\(x=2\)
4/3 -1/3x(x-1)=1
1/3x(x-1)=4/3-1
1/3x(x-1)=1/3
x-1=1/3:1/3
x-1=1
x=1+1
x=2
vậy x=2