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choihyoKi
@choihyoKi
July 2022
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ХЭЛП~ решите уравнение:
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Flash3146
Verified answer
5/(x+2)=3/(x-4)
(x-4)*5=3(x+2)
5x-20=3x+6
5x-3x=6+20
2x=26|:2
x=13
1 votes
Thanks 0
vmaluga2011
2х не равно 26:2
Flash3146
мы обе части уравнения делим
vmaluga2011
Тогда 2х:2=26:2
vmaluga2011
Но никак не 2х=13
vmaluga2011
Ладно, может модератор убедит
Flash3146
нет,нам учитель математики так сказал
vmaluga2011
5/(х+2)=3/(х-4) (умножим на (х+2)(х-4))
5(х-4)=3(х+2)
5х-20=3х+6
5х-3х=6+20
2х=26
х=26:2
х=13
0 votes
Thanks 0
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Answers & Comments
Verified answer
5/(x+2)=3/(x-4)(x-4)*5=3(x+2)
5x-20=3x+6
5x-3x=6+20
2x=26|:2
x=13
5(х-4)=3(х+2)
5х-20=3х+6
5х-3х=6+20
2х=26
х=26:2
х=13