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oooooo9
@oooooo9
August 2022
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10 баллов! помогите пожалуйста
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666Ангелина
Verified answer
А)3х + 1,2=5,1 * 2,8 : 3,4 = 4,2
3х=3
х=1
Ответ:1.
б)2х + 1,9 = 6,3*5,5:3,5 = 9,9
2х = 8
х = 4
Ответ:4.
1 votes
Thanks 1
Dимасuk
Verified answer
A) (3x + 1,2)/2,8 = 5,1/3,4
3x + 1,2 = 1,5·2,8
3x + 1,2 = 4,2
3x = 3
x = 1
--------------
б) 6,3/3,5 = (2x + 1,9)/5,5
1,8 = (2x + 1,9)/5,5
2x + 1,9 = 5,5·1,8
2x + 1,9 = 9,9
2x = 9,9 - 1,9
2x = 8
x = 4
-------------------
0 votes
Thanks 0
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Answers & Comments
Verified answer
А)3х + 1,2=5,1 * 2,8 : 3,4 = 4,23х=3
х=1
Ответ:1.
б)2х + 1,9 = 6,3*5,5:3,5 = 9,9
2х = 8
х = 4
Ответ:4.
Verified answer
A) (3x + 1,2)/2,8 = 5,1/3,43x + 1,2 = 1,5·2,8
3x + 1,2 = 4,2
3x = 3
x = 1
--------------
б) 6,3/3,5 = (2x + 1,9)/5,5
1,8 = (2x + 1,9)/5,5
2x + 1,9 = 5,5·1,8
2x + 1,9 = 9,9
2x = 9,9 - 1,9
2x = 8
x = 4
-------------------