Odpowiedź:
[tex]-\dfrac{13,7+(-2\frac{3}{5}):0,5-1,5\cdot6}{(-\frac{1}{3}):3\cdot(-9)}=-\dfrac{13,7-2\frac{3}{5}:\frac{5}{10}-9}{-\frac{1}{3}\cdot\frac{1}{3}\cdot(-9)}=-\dfrac{13,7-\frac{13}{5}:\frac{1}{2}-9}{-\frac{1}{\not9}\cdot(-\not9)}=\\\\\\=-\dfrac{13,7-\frac{13}{5}\cdot2-9}{1}=-(13,7-\frac{26}{5}-9)=-(13,7-5\frac{1}{5}-9)=\\\\\\=-(13,7-5,2-9)=-(8,5-9)=-0,5[/tex]
