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Babore123456
@Babore123456
May 2019
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Bonsoir je doit résoudre un système par la methode de combinaisons voice le système :2x-9y=3
-10x+7y=-4
Merci:-) sous la forme de la photo mise en bas
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1D2010
Bonsoir,
2x-9y=3
-10x+7y=-4
10x-45y=15
-10x+7y=-4
Donc y=-11/38
y=-11/38
-10x+7×-11/38=-4
y=-11/38
x=15/76
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2x-9y=3
-10x+7y=-4
10x-45y=15
-10x+7y=-4
Donc y=-11/38
y=-11/38
-10x+7×-11/38=-4
y=-11/38
x=15/76