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NastyKovner
@NastyKovner
August 2022
2
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Помогите пожалуйста, вообще не понимаю! (Номер 629, полностью)
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Slandewi
Так всё же просто...
1. 3х+6-х=10
2х=4
х=2
1 votes
Thanks 2
Slandewi
2. 4х+3х-21=5
Way7
А) 3(x+2)-x=10
3x+6-x=10
2x=10-6
2x=4
x=2
б) 8=3(-4)-x
8=3x-12-x
20=2x
x=10
в) 4x+3(x-7)=5
4x+3x-21=5
7x=26
x=3
г)3(x-1)+x=2x
3x-3+x=2x
4x-2x=3
2x=3
x=1,5
3 votes
Thanks 2
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Answers & Comments
1. 3х+6-х=10
2х=4
х=2
3x+6-x=10
2x=10-6
2x=4
x=2
б) 8=3(-4)-x
8=3x-12-x
20=2x
x=10
в) 4x+3(x-7)=5
4x+3x-21=5
7x=26
x=3
г)3(x-1)+x=2x
3x-3+x=2x
4x-2x=3
2x=3
x=1,5