Petite question parce que j'hésite depuis tous a l'heure
Si 6/7 x - 1/7 y = o
y = ?
-1/7y = 0 - 6/7x
y = -6/7x / -1/7
y = -6/7x (-7)
y = 6x
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-1/7y = 0 - 6/7x
y = -6/7x / -1/7
y = -6/7x (-7)
y = 6x