bonour, bonne année
qui peux m'aider s'il vous plait merci d'avance voici mes 2 exercices
qui peux m'aider s'il vous plait merci d'avance voici mes 2 exercices
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1)A = 5 + (2x + 3)
A = 5 + 2x + 3
A = 2x + 8
B = 5x - (3 - 4x)
B = 5x - 3 + 4x
B = 9x - 3
C = (x - 4) - 6
C = x - 4 - 6
C = x - 10
D = (4x + 2) + (- 6x - 2)
D = 4x + 2 - 6x + 2
D = - 2x + 4
E = - ( - 3x - 1) + (x - 3)
E = 3x + 1 + x - 3
E = 4x - 2
F = 8x - (5x + 2) + (3 - 4x)
F = 8x - 5x - 2 + 3 - 4x
F = - x + 1
2)
A = (x + 3) + (4x - 5)
A = x + 3 + 4x - 5
A = 5x - 2
B = 6 - 2t - (4t - 8)
B = 6 - 2t - 4t + 8
B = - 6t + 14
C = - (8a + 3) - 4a
C = - 8a - 7 - 4a
C = - 12a - 7
D = (3y + 7) + (- 5y + 3)
D = 3y + 7 - 5y + 3
D = - 2y + 10
E = 5z - 6 - (7 - 2z) + 3z
E = 5z - 6 - 7 + 2z + 3z
E = 10z - 13
F = (3 - 4x) - (- 2x + 8)
F = 3 - 4x + 2x - 8
F = - 2x - 5