Предмет: Алгебра, автор: karinabessmertnaya

срочно помогитеее
6(Х-3)+2(х+2) равно 1
5 (х-1)-4(х-2)равно 10
3(х-9)+5 (х-4) РАВНО 1
7(х-9)-3х+1равно 9
пж срочно(((

Ответы

Автор ответа: Teen1313

6(х-3)+2(х+2)=1
6х-18+2х+4=1
8х-14=1
8х=15
Х=15:8
Х=1 семь восьмых

5(х-1)-4(х-2)=10
5х-5-(4х-8)=10
5х-5-4х+8=10
Х=7

Teen1313: 3(х-9)+5(х-4=1

Автор ответа: h1ebushek

1) 6х-18+2х+4=1
6х+2х=1+18-4
8х=15
15
х= --- = 1 целая 7 восьмых
8

2) 5х-5-4х+8=10
х=10+5-8
х=7
3)3х - 27 + 5х - 20 = 1
8х=1+47
8х=48
х=48÷8
х=6

4)7х-63-3х+1=9
4х=9+63-1
4х=71
х=17 целых 3 четвертых.
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