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PlexFX
@PlexFX
August 2022
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Ребят срочно!) Можно только 1-ое)
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hard01
3x+7y=-1|*(-2)
2x-3y=7|*3
-6x-14y=2
6x-9y=21
-6x+6x-14y-9y=2+21
-23y=23
y=-1
2x-3*1=7
2x=7+3
x=5
Ответ: х=-1, y=5
если не понятно спроси.
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PlexFX
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Answers & Comments
2x-3y=7|*3
-6x-14y=2
6x-9y=21
-6x+6x-14y-9y=2+21
-23y=23
y=-1
2x-3*1=7
2x=7+3
x=5
Ответ: х=-1, y=5
если не понятно спроси.