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Pharmit24
@Pharmit24
August 2022
2
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Решите в задании 1. номер 1) а), б), в)
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учусьгдето
А) 2х + 1 = 1 × 5
2х + 1 = 5
2х = 5 - 1
2х = 4
х = 2
б) 3х - 8 = (-1) × 2
3х - 8 = -2
3х = (-2) + 8
3х = 6
х = 6:3
х = 2
в) 11 - 3х = 1/2×4
11 - 3х = 4/2
11 - 3х = 2
3х = 11 - 2
3х = 9
х = 9:3
х = 3
2 votes
Thanks 1
Trofimkirillov
N 1
1)а)2x+1/5=1
2x+1=1*5
2x+1=5
2x=5-1
2x=4
x=4:2
x=2
2*2+1/5=1
Ответ:x=2
б)3x-8/2=-1
3x-8=-1*2
3x-8=-2
3x=-2+8
3x=6
x=6:3
x=2
3*2-8/2=-1
Ответ:x=2
в)11-3x/4=1/2
11-3x/4=2/4
11-3x=2
3x=11-2
3x=9
x=9:3
x=3
11-3*3/4=1/2
Ответ:x=3
0 votes
Thanks 1
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Answers & Comments
2х + 1 = 5
2х = 5 - 1
2х = 4
х = 2
б) 3х - 8 = (-1) × 2
3х - 8 = -2
3х = (-2) + 8
3х = 6
х = 6:3
х = 2
в) 11 - 3х = 1/2×4
11 - 3х = 4/2
11 - 3х = 2
3х = 11 - 2
3х = 9
х = 9:3
х = 3
1)а)2x+1/5=1
2x+1=1*5
2x+1=5
2x=5-1
2x=4
x=4:2
x=2
2*2+1/5=1
Ответ:x=2
б)3x-8/2=-1
3x-8=-1*2
3x-8=-2
3x=-2+8
3x=6
x=6:3
x=2
3*2-8/2=-1
Ответ:x=2
в)11-3x/4=1/2
11-3x/4=2/4
11-3x=2
3x=11-2
3x=9
x=9:3
x=3
11-3*3/4=1/2
Ответ:x=3