Question

Помогите! 3. Реши уравнения
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Answer 1

Ответ:

2,7/8+x=3,4/8. 4,2/7-y=1,6/7. n-3/5=6,4/5

x=3,4/8-2,7/8. y=4,2/7-1,6/7. n=3/5+6,4/5

x=5/8. y=17/7=2,3/7. n=7,2/5

Answer 2

Пошаговое объяснение:

$2 \frac{7}{8} + x = 3 \frac{4}{8} \\ x = 3 \frac{4}{8} - 2 \frac{7}{8} \\ x = 2 \frac{12}{8} - 2 \frac{7}{8} \\ x = \frac{5}{8}$

$4 \frac{2}{7} - y = 1 \frac{6}{7} \\ y = 4 \frac{2}{7} - 1 \frac{6}{7} \\ y = 3 \frac{9}{7} - 1 \frac{6}{7} \\ y = 2 \frac{3}{7}$

$n - \frac{3}{5} = 6 \frac{4}{5} \\ n = 6 \frac{5}{4} + \frac{3}{5} \\ n - \frac{3}{5} = 6 \frac{4}{5} \\ n = 6 \frac{4}{5} + \frac{3}{5} \\ n = 6 \frac{7}{5} \\ n = 7 \frac{2}{5}$