ДАМ 20 БАЛЛОВ найдите х из пропорции 8х+3/5=4x-2/2. Created by armud00001. matematika-ru

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August 2022 1 4 Report

ДАМ 20 БАЛЛОВ

найдите х из пропорции 8х+3/5=4x-2/2

Answers & Comments

svetazuna (8х + 3) / 5 = (4х - 2) / 2,
(8х + 3) * 2 = (4х - 2) * 5,
16х + 6 = 20х - 10,
20х - 16х = 6 + 10,
4х = 16,
х = 16 : 4,
х = 4,

проверка:
(8*4 + 3) / 5 = (4*4 -2) / 2,
(32 + 3) / 5 = (16 - 2) / 2,
35 / 5 = 14 / 2,
7 / 1 = 7 / 1

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armud00001 August 2022 | 0 Ответы

Answers & Comments

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