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MilanaM05
@MilanaM05
July 2022
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Решите пожалуйста
3(х+2)-х=10
4х+3(х-7)=5
5-х=4(х-3)
7-(2х+3)=9
С объяснением
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jekadva
3(х+2)-х=10
3x+6-x=10
2x+6=10
2x=10-6
2x=4
x=4:2
x=2
4х+3(х-7)=5
4x+3x-21=5
7x-21=5
7x=5+21
7x=26
x=26:7
x=3 5/7
5-х=4(х-3)
5-x=4x-12
4x+x=5+12
5x=17
x=17:5
x=3,4
7-(2х+3)=9
7-2x-3=9
4-2x=9
-2x=9-4
-2x=5
x= -5:2
x= -2,5
2 votes
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MilanaM05
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MilanaM05
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Answers & Comments
3x+6-x=10
2x+6=10
2x=10-6
2x=4
x=4:2
x=2
4х+3(х-7)=5
4x+3x-21=5
7x-21=5
7x=5+21
7x=26
x=26:7
x=3 5/7
5-х=4(х-3)
5-x=4x-12
4x+x=5+12
5x=17
x=17:5
x=3,4
7-(2х+3)=9
7-2x-3=9
4-2x=9
-2x=9-4
-2x=5
x= -5:2
x= -2,5