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Sagot :

VINS

bonjour

A = x + 5 - 5 + y = x + y

B = x + 5 - y - 5 = x - y

C )  x - 5 + y + 5 = x + y

D = - 8 y + 20 y²

E =  9 x² - 18 x

F = 3 a + 10 - 5 a = - 2 a + 10

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