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Lilit245
@Lilit245
June 2022
2
15
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ДАМ 100 БАЛЛОВ
СРОЧНО ПЖЛ
№1. Решите уравнения:
1)11х=36-х
2)9х+4=48-2х
3)8-4х=2х-16
4)0,4х+3,8=2,6-0,8х
5)6,8-1,3х=0,6х-2,7
6)4/9х+14=1/6х+9
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hello93
Привет,
1)11х=36-х
12х=36
х=3
2)9х+4=48-2х
11х=44
х=4
3)8-4х=2х-16
-6х=-24
х=4
4)0,4х+3,8=2,6-0,8х
1,2х=-1,2
х=-1
5)4/9х+14=1/6х+9
18*4/9х+18*14=18*1/6х+9*18
8х+252=3х+162
5х=-90
х=-18
2 votes
Thanks 1
Lilit245
спасибо)))
Арвэн
1)11x=36-x
11x+x=36
12x=36
x=3
2)9x+4=48-2x
9x+2x=48-4
11x=44
x=4
3)8-4x=2x-16
-4x-2x=-16-8
-6x=-24
x=4
4)0,4x+3,8=2,6-0,8x
0,4x+0,8x=2,6-3,8
1,2x=-1,2
x=-1
5)6,8-1,3x=0,6x-2,7
-1,3x-0,6x=-2,7-6,8
-1,9x=-9,5
x=5
6)4/9x+14=1/6x+9
4/9x-1/6x=9-14
5/18x=-5
x=-18
2 votes
Thanks 2
Lilit245
спасибо)))
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Answers & Comments
1)11х=36-х
12х=36
х=3
2)9х+4=48-2х
11х=44
х=4
3)8-4х=2х-16
-6х=-24
х=4
4)0,4х+3,8=2,6-0,8х
1,2х=-1,2
х=-1
5)4/9х+14=1/6х+9
18*4/9х+18*14=18*1/6х+9*18
8х+252=3х+162
5х=-90
х=-18
11x+x=36
12x=36
x=3
2)9x+4=48-2x
9x+2x=48-4
11x=44
x=4
3)8-4x=2x-16
-4x-2x=-16-8
-6x=-24
x=4
4)0,4x+3,8=2,6-0,8x
0,4x+0,8x=2,6-3,8
1,2x=-1,2
x=-1
5)6,8-1,3x=0,6x-2,7
-1,3x-0,6x=-2,7-6,8
-1,9x=-9,5
x=5
6)4/9x+14=1/6x+9
4/9x-1/6x=9-14
5/18x=-5
x=-18