Предмет: Алгебра, автор: olegkozhevniko

Помогите решить уравнения:
1) 6x+18=0


2)2x+3=3x-2


3)3(5-x)=11+2x


7класс.

Ответы

Автор ответа: Маханька
0
1) 6x+18=0 
6х=-18
х=-3
Ответ: -3

2)2x+3=3x-2
3+2=3х-2х
х=5
Ответ: 5

3)3(5-x)=11+2x
15-3х=11+2х
15-11=2х+3х
5х=4
х=0,8
Ответ: 0,8
Автор ответа: olegkozhevniko
0
http://znanija.com/task/20027550 помоги перейди по сылке
Автор ответа: olegkozhevniko
0
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