Предмет: Математика, автор: Аноним

Найдите корень уравнения
1) (х-3)-5=13
2) 3х+2х+7=17

Ответы

Автор ответа: znayka2006
0
1) x-3=13+5
    x-3=18
    x=18+3
    x=21
корень уровнения = 21
Автор ответа: znayka2006
0
втор-ое не знаю
Автор ответа: Alenka385
0
2) 3х+2х+7=17
5х+7=17
5х=17-7
5х=10
х=10:5
х=2
Корень уравнения:х=2
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