Question

Помогите пожалуйста!!!!!!!!​

Answer 1

$\frac{10k-4}{6-10k}+\frac{(\star )}{6-10k}=1\; \; ,\quad ODZ:\; 6-10k\ne 0\; \; \to \; \; k\ne \frac{3}{5}\\\\\frac{10k-4+(\star )}{6-10k}=1\\\\10k-4+(\star )=6-10k\\\\(\star )=6-10k-10k+4\\\\(\star )=10-10k$