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Vilonskaya
@Vilonskaya
July 2022
2
18
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решите х+12=4х-9
И 2(3х-2)=7-(1-3)
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Evgenia4836
Verified answer
12+9=4x-x
21=3x
x=7
6x-4=7-1+3
6x=7-1+3+4
6x=13
x=13/6
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Vilonskaya
Не правильно
Треугольник228
Х+12=4х-9
х-4x=-9-13
-3x=-21
x=7
2(3x-2)=7-(1-3)
6x-4=7-(-2)
6x-4=7+2
6x-4=9
6х=13
х= 13 шестых
х= две целых одна шестая
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Answers & Comments
Verified answer
12+9=4x-x21=3x
x=7
6x-4=7-1+3
6x=7-1+3+4
6x=13
x=13/6
х-4x=-9-13
-3x=-21
x=7
2(3x-2)=7-(1-3)
6x-4=7-(-2)
6x-4=7+2
6x-4=9
6х=13
х= 13 шестых
х= две целых одна шестая