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CrystalMaidennn
@CrystalMaidennn
July 2022
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Решить систему уравнений
х+8у=-6
5х-2у=12
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LandyG
X+8y=-6
5x-2y=12 |*4
-------
x+8y=-6
20x-8y=48
-------
x=-6
20x=48
-------
21x=42
x=2
-------
2+8y=-6
10-2y=12
-------
8y=-8
-2y=-22
6y=-30
-------
y=-5
x=2
2 votes
Thanks 1
Барбара1298
Х+8у=-6/-5
5х-2у=12
-5х-40у=30
5х-2у=12
-42у=42
у=-1
х+8=-6
х=-6-8
х=-14
Ответ:(-14:-1)
2 votes
Thanks 1
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Answers & Comments
5x-2y=12 |*4
-------
x+8y=-6
20x-8y=48
-------
x=-6
20x=48
-------
21x=42
x=2
-------
2+8y=-6
10-2y=12
-------
8y=-8
-2y=-22
6y=-30
-------
y=-5
x=2
5х-2у=12
-5х-40у=30
5х-2у=12
-42у=42
у=-1
х+8=-6
х=-6-8
х=-14
Ответ:(-14:-1)