Question

1/15 n-1/3n-1/5 якщо n=-1 1/14

Answer 1

Ответ:

$\frac{1}{15} n-\frac{1}{3} n-\frac{1}{5} = \frac{1}{15}n-\frac{5}{15}n-\frac{1}{5} = -\frac{4}{15} n-\frac{1}{5}$

Если $n=-1\frac{1}{14}$ , то $-\frac{4}{15}*(-1 \frac{1}{14} )-\frac{1}{5}=\frac{4*15}{15*14} -\frac{1}{5} =\frac{2}{7} -\frac{1}{5} =\frac{10}{35} -\frac{7}{35}=\frac{3}{35}$