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valerija23889
@valerija23889
July 2022
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.2х+4у=30
х+у=11 помогите пожалуйста
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osja38
X+y=11
2x+4y=30 на два первых поставь знак системы
x+3y=19
x=19-3y
2(19-3y)+4y=30
38-6y+4y=30
-2y=-8
y=4
x=19-3y
x=19-12=7
7+4=11
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Answers & Comments
2x+4y=30 на два первых поставь знак системы
x+3y=19
x=19-3y
2(19-3y)+4y=30
38-6y+4y=30
-2y=-8
y=4
x=19-3y
x=19-12=7
7+4=11