Question

Срочно
-1,8x=-5,4
1/7:x=-5/14
-5/6x=-1/7
-2целых5/6x=17/18

Answer 1

1)

$- 1.8x = - 5.4 \\ x = \frac{ - 5.4}{ - 1.8} \\ x = 3$

2)

$\frac{1}{7} \div x = - \frac{5}{14} \\ x = \frac{1}{7} \div ( - \frac{5}{14} ) \\ x = \frac{2}{5} = 0.4$

3)

$- \frac{5}{6} x = - \frac{1}{7} \\ x = - \frac{1}{7} \div ( - \frac{5}{6} ) \\ x = \frac{6}{35}$

4)

$- 2 \frac{5}{6} x = \frac{17}{18} \\ x = \frac{17}{18} \div ( - 2 \frac{5}{6} ) \\ x = \frac{17}{18} \div ( - \frac{17}{6} ) \\ x = \frac{1}{3}$