Предмет: Математика, автор: romapubper

|3х +5| =7 теңдеу......​

Ответы

Автор ответа: Artsounds
2

Ответ:

|3x + 5| = 7 \\ 3x + 5 = 7 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 3x + 5 = - 7 \\ 3x = 7 - 5 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 3x = - 7 - 5 \\ 3x = 2 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 3x = - 12 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = - 12 \div 3\\ x = \frac{2}{3} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = - 4

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