01.04.2022

8х+7=9х+1 Найти х (15 баллов)

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Математика

Вопрос школьника по предмету Математика

8х+7=9х+1
Найти х (15 баллов)

Ответ учителя по предмету Математика

8х-9х=1-7

-1х=-6

х=-6:(-1)

х=6

Ответ:6

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