\(-1\frac{5}{27}-\left(3x-\frac{7}{9}\right)^3=-\frac{24}{27}\)
\(-\frac{32}{27}-\left(3x-\frac{7}{9}\right)^3=-\frac{24}{27}\)
\(\left(3x-\frac{7}{9}\right)^3=-\frac{32}{27}--\frac{24}{27}\)
\(\left(3x-\frac{7}{9}\right)^3=-\frac{8}{27}\)
\(\left(3x-\frac{7}{9}\right)=\sqrt[3]{-\frac{8}{27}}\)
Rồi làm tiếp đi