Вопрос школьника по предмету Геометрия
Найти корень уровнения X+5÷7-x÷2=4
Ответ учителя по предмету Геометрия
(х + 5)/7 — х/2 = 4 | *14
2(х+5) — 7х = 56
2х + 10 — 7х = 56
-5х = 46
х = -9,2
Немного не понятно, числитель — (х+5) или 5, поэтому второй вариант:
х + 5/7 — х/2 = 4
х — х/2 = 3 2/7
х/2 = 3 2/7
х = 3 2/7 * 2
х = 46/7
х = 6 4/7
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