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славян2003
@славян2003
June 2022
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Решите уравнение:
1)6(х+2)=8(х-2)
2)36(х+2)=48х
3)(5:1 1/4)x+5x=21
Прошу помогите пожалуйста!!!
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Answers & Comments
Asya0607
1) 6(х+2) = 8(х-2)
6х+12 = 8х - 16
28 = 2х
х= 14
2) 36(х+2) = 48 х
36х +72 = 48х
72 = 12х
х = 6
3)
1 votes
Thanks 3
Prosto145
1)6(х+2)=8(х-2)
6x+12-8x+16=0
-2x+28=0
-2x=-28
x=28:2
x=14
2)36(х+2)=48х
36х+72-48х=0
-12х+72=0
-12х=-72
х=72:12
х=6
3)(5:1 1/4)x+5x=21
1)5:
4х+5х=21
9х=21
х=21:9
х=
2 votes
Thanks 3
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Answers & Comments
6х+12 = 8х - 16
28 = 2х
х= 14
2) 36(х+2) = 48 х
36х +72 = 48х
72 = 12х
х = 6
3)
6x+12-8x+16=0
-2x+28=0
-2x=-28
x=28:2
x=14
2)36(х+2)=48х
36х+72-48х=0
-12х+72=0
-12х=-72
х=72:12
х=6
3)(5:1 1/4)x+5x=21
1)5:
4х+5х=21
9х=21
х=21:9
х=