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Sagot :

Bonjour

A = 3x + 1/4 - (3 - 2x)

A = 3x + 1/4 - 3 + 2x

A = 3x + 2x + 1/4 - 3

A = 5x + 1/4 - 12/4

A = 5x - 11/4

B = - (1/3x + 2) + (5x - 3)

B = - 1/3x - 2 + 5x - 3

B = - 1/3x + 15/3x - 5

B = 14/3x - 5

C = (2/3x + 1/3) - (5/6 + 2/6x)

C = 2/3x + 1/3 - 5/6 - 2/6x

C = 4/6x - 2/6x + 2/6 - 5/6

C = 2/6x - 3/6

C = 1/3x - 1/2

D = 1/2 + 2x - (x - 3/2)

D = 1/2 + 2x - x + 3/2

D = x + 4/2

D = x + 2.

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