Bonjour.
A = 3x + (7x - 5) + 9 = 10x + 4
B = - 6 + (- 12t + 4) - 5t = - 17t - 2
C = - (10y - 7) + 12 = - 10y + 19
D = 14k - (- 8k + 1) - 2 = 22k - 3
Bonne journée :)
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Bonjour.
A = 3x + (7x - 5) + 9 = 10x + 4
B = - 6 + (- 12t + 4) - 5t = - 17t - 2
C = - (10y - 7) + 12 = - 10y + 19
D = 14k - (- 8k + 1) - 2 = 22k - 3
Bonne journée :)