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DeathDragon
@DeathDragon
August 2022
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решите уравнения а) ( х - 8 ) * 2/5 = 2 б) 2 1/3х - 2 1/3 = 2 1/3
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лика415
А) (х-8)*2:5=2
(х-8)*2=2*5
(х-8)*2=10
х-8=10:2
х-8=5
х=5+8
х=13
-----------------------
(13-8)*2:5=2
1 votes
Thanks 1
DeathDragon
тут же только а :с
polinaaa01
а) ( х - 8 ) * 2/5 = 2
2/5х-16/5=2
2/5х=2+16/5
2/5х=26/5
х=26/5:2/5
х=13
------
б) 2 1/3х - 2 1/3 = 2 1/3
2 1/3х = 2 1/3 + 2 1/3
2 1/3х = 4 2/3
х=2
3 votes
Thanks 2
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Answers & Comments
(х-8)*2=2*5
(х-8)*2=10
х-8=10:2
х-8=5
х=5+8
х=13
-----------------------
(13-8)*2:5=2
2/5х-16/5=2
2/5х=2+16/5
2/5х=26/5
х=26/5:2/5
х=13
------
б) 2 1/3х - 2 1/3 = 2 1/3
2 1/3х = 2 1/3 + 2 1/3
2 1/3х = 4 2/3
х=2