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Laura010100
@Laura010100
April 2019
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Résoudre équation :
4x + 5y = 0
x - 2y = -7
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Eva16
4x+5y=0
x-2y=-7
4x+5y
x=-7+2y
4(-7+2y)+5y=0
x=-7+2y
-28+8y+5y=0
x=-7+2y
13y=28
x=-7+2y
y=28/13
x=-7+2(28/13)
y=28/13
x=-35/13
1 votes
Thanks 1
laura010100
- 77 ?
laura010100
dac
laura010100
Jte remercie beaucoup
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Lista de comentários
x-2y=-7
4x+5y
x=-7+2y
4(-7+2y)+5y=0
x=-7+2y
-28+8y+5y=0
x=-7+2y
13y=28
x=-7+2y
y=28/13
x=-7+2(28/13)
y=28/13
x=-35/13