2x - 3 = x + \(\dfrac{1}{2}\)

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

\(\dfrac{5}{12}x\) + 3 = \(\dfrac{1}{3}\) - \(\dfrac{7}{12}x\)

25 x \(\left(-\dfrac{1}{5}\right)^2\) + \(\dfrac{1}{5}\) - 9 x \(\left(-\dfrac{1}{9}\right)^2\)+\(\dfrac{1^{20}}{9}\)

\(\left(-\dfrac{1}{3}\right)^{-1}\) - \(\left(-\dfrac{6}{7}\right)^0\) + \(\left(\dfrac{1}{2}\right)^2\) : 2

9 x \(\left(\dfrac{2}{3}\right)^2\) + 2 x \(\left(-\dfrac{9}{2}\right)\) + 4 x \(\left(-\dfrac{15}{7}\right)^0\)

3 x \(\left(-\dfrac{2}{3}\right)^2\) - 2 x\(\left(-\dfrac{2}{3}\right)\) + 4 x \(\left(-\dfrac{2}{3}\right)^0\)