как решить уравнение 190:(x-13)+11=30. Created by angelinavarlakova1. matematika-ru

как решить уравнение 190:(x-13)+11=30...

angelinavarlakova1 @angelinavarlakova1

July 2022 1 12 Report

как решить уравнение 190:(x-13)+11=30

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inferno256

Ответ:

$\frac{190}{x - 13} + 11 = 30 \\ \frac{190}{x - 13} = 30 - 11 \\ \frac{190}{x - 13} = 19 \\ x - 13 = \frac{190}{19} \\ x - 13 = 10 \\ x = 10 + 13 \\ x = 23$

Проверка:

$\frac{190}{23 - 13} + 11 = 30 \\ \frac{190}{10} + 11 = 30 \\ 19 + 11 = 30 \\ 30 = 30$

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