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Dunbar
@Dunbar
August 2022
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решить систему
5x-4y=7
y+2x=-9
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Utem
5x-4y=7 5x-4(-9-2x)=7 5x+36+8x=7 13x=7-36 13x=-29 x=-29/13
y+2x=-9 y=-9-2x y=-9-2*(-29/13)=-9+58/13=-4 7/13
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Answers & Comments
y+2x=-9 y=-9-2x y=-9-2*(-29/13)=-9+58/13=-4 7/13