\(\dfrac{2}{3}x+\dfrac{4}{5}=-\dfrac{2}{15}\)

\(3-\left(-\dfrac{6}{7}\right)^0+\sqrt{9}:2\)

\(\sqrt{25}-3\sqrt{\dfrac{4}{9}+1}\)

\(\left(0,125\right)^{100}.\left(\sqrt{64}\right)^{100}\)

\(\sqrt{\dfrac{16}{9}+\left(\dfrac{2}{3}\right)^9}:\left(-\dfrac{2}{3}\right)^8-2020\)

\(\sqrt{\dfrac{16}{9}+\left(\dfrac{2}{3}\right)^9}:\left(-\dfrac{2}{3}\right)^8-2020\)