-3 1/7x-2 5/21=-4 1/3-1 1/21x

Question

-3 1/7x-2 5/21=-4 1/3-1 1/21x

Answer 1

- 3 1/7х - 2 5/21 = - 4 1/3 - 1 1/21х
- 3 1/7х + 1 1/21х = - 4 1/3 + 2 5/21
- 3 3/21х + 1 1/21х = - 4 7/21 + 2 5/21
- 2 2/21х = - 2  2/21
х = - 2 2/21 : (-2 2/21)
х = 1
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Проверка: - 3 1/7 * 1 - 2 5/21 = - 4 1/3 - 1 1/21 * 1
                   - 3 3/21 - 2 5/21 = - 4 7/21 - 1 1/21
                   - 5 8/21 = - 5 8/21