Question

Answer 1

\(\Leftrightarrow\dfrac{26}{7}x-\dfrac{12}{7}x=1\\ \Leftrightarrow2x=1\\ \Leftrightarrow x=\dfrac{1}{2}\)

Answer 2

\(\left(3\dfrac{5}{7}x-1\dfrac{5}{7}x\right)-\dfrac{1}{3}=\dfrac{2}{3}\)

\(\Rightarrow\dfrac{26}{7}x-\dfrac{12}{7}x=1\)

\(\Rightarrow2x=1\Rightarrow x=\dfrac{1}{2}\)

Answer 3

\(\left(3\dfrac{5}{7}x-1\dfrac{5}{7}x\right)-\dfrac{1}{3}=\dfrac{2}{3}\)

<=> \(\left(\dfrac{26x}{7}-\dfrac{12x}{7}\right)=1\)

<=> \(\dfrac{14x}{7}=1\)

<=> 14x = 7

<=> x = \(\dfrac{7}{14}=\dfrac{1}{2}\)