Предмет: Математика, автор: jarkob

решить уровнение с модулем |x+5|+|x+4|+|x+3|+|x+2|+|x+1|=10x решить уровнение

Ответы

Автор ответа: Опыт
0
сумма модулей число неотрицательное, следовательно 10x>=0
а следовательно x>=0. в этом случае все выражения под знаком модуля положительны и знак модуля можно убрать во всех выражениях.
x+5+x+4+x+3+x+2+x+1=10x
5x+15=10x
5x=15
x=3
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