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ГлорияМакфин1
@ГлорияМакфин1
March 2022
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Решите системы уравнений с подробным решением.
1) {2х+3у=-1
{3х+5у=-2
2) {3х-у=5
{2х+7у=11
Смотреть ответ
33qs
33qs
1)
x=(-1-3y)/2 x=(-1-0.6)/2=0,4
-1,5-7,5y+5y=-2 2,5y=0,5 у=0.2
2)
y=3x-5 y=6-5 y=1
2x+21x-35=11 23x=46 x=2
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Report "2=0,4 -1,5-7,5y+5y=-2 2,5y=0,5 у=0.22) y=3x-5 y=6-5 y=1 2x+21x-35=11 23x=46 x=2..."
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