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shepotevayulya
@shepotevayulya
July 2022
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lisenok20099
№1
а) 6x+18=0
6x=-18
x=-3
б) 2x+3=3x-2
3x-2x=3+2
x=5
в) 3(5-x)=11+2x
15-3x=11+2x
15-11=2x+3x
5x=4
x=4/5
x=0.8
0 votes
Thanks 2
Kriiistinaa
1) 6х+ 18= 0
х=18:6
х= 2
Ответ: 2.
2) 2х+ 3= 3х-2
-х= -5
х=5
Ответ: 5
3)3(5-х)= 11+ 2х
15-3х=11 + 2х
-5х= -4
х= 4:5
х=0,8
Ответ: 0,8
0 votes
Thanks 0
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Answers & Comments
а) 6x+18=0
6x=-18
x=-3
б) 2x+3=3x-2
3x-2x=3+2
x=5
в) 3(5-x)=11+2x
15-3x=11+2x
15-11=2x+3x
5x=4
x=4/5
x=0.8
х=18:6
х= 2
Ответ: 2.
2) 2х+ 3= 3х-2
-х= -5
х=5
Ответ: 5
3)3(5-х)= 11+ 2х
15-3х=11 + 2х
-5х= -4
х= 4:5
х=0,8
Ответ: 0,8