Предмет: Математика, автор: cyganka84

Помогите решить 18+3х=а+14. пожалуйста помогите решить срочно надо.
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Ответы

Автор ответа: lolyach
1
18+3x=a+14
3x=a+14-18
3x=a-4
x=a/3-4/3
x=a-4/3
x=a-4/3
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