Question

реши уравнение 1 7/8-2х=5/8​

Answer 1

$1 \dfrac{7}{8} - 2x = \dfrac{5}{8} \\\\ 2x = 1 \dfrac{7}{8} - \dfrac{5}{8} \\\\ 2x = 1 \dfrac{2}{8} \\\\ x = 1 \dfrac{2}{8}\div 2 \\\\ x = \dfrac{10}{8}\cdot \dfrac{1}{2} \\\\ x = \dfrac{10}{16} \\\\ x = \dfrac{5}{8}$

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$1 \dfrac{7}{8} - 2\cdot \dfrac{5}{8} = \dfrac{5}{8} \\\\ {} \;\;\;\;\;\;\;\;\;\;\;\;\; \dfrac{5}{8} = \dfrac{5}{8}$