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Masha137
@Masha137
October 2021
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Помогите пожалуйста!
Номер 3.
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jekadva
1)
5x-9=2,3x+1
5x-2,3x=1+9
2,7x=10
x=10:2,7
x=3 19/27
========
2)
6x-7=0,2
6x=0,2+7
6x=7,2
x=7,2:6
x=1,2
========
3)
-5x+1,2=-5,1
-5x=-5,1-1,2
-5x=-6,3
x=-6,3:(-5)
x=1,26
2 votes
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Masha137
Спасибо! :)
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Answers & Comments
5x-9=2,3x+1
5x-2,3x=1+9
2,7x=10
x=10:2,7
x=3 19/27
========
2)
6x-7=0,2
6x=0,2+7
6x=7,2
x=7,2:6
x=1,2
========
3)
-5x+1,2=-5,1
-5x=-5,1-1,2
-5x=-6,3
x=-6,3:(-5)
x=1,26