Bonjour
Réduire les expressions suivantes :
A = 13 + (x - 6) = 13 + x - 6 = x + 7
B = - 5 - (4 - 2x) = - 5 - 4 + 2x = 2x - 9
C = 10 - (x + 3) + (- 3x + 6)
C = 10 - x - 3 - 3x + 6
C = - 4x + 13
D = (5 + 2x) - (- 7- 7x)
D = 5 + 2x + 7 + 7x
D = 9x + 12
E = x - 8 - (2 + 4x - (9 - 5x))
E = x - 8 - (2 + 4x - 9 + 5x)
E = x - 8 - 2 - 4x + 9 - 5x
E = - 8x - 1.
Bonjour :)
Bon courage !
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Bonjour
Réduire les expressions suivantes :
A = 13 + (x - 6) = 13 + x - 6 = x + 7
B = - 5 - (4 - 2x) = - 5 - 4 + 2x = 2x - 9
C = 10 - (x + 3) + (- 3x + 6)
C = 10 - x - 3 - 3x + 6
C = - 4x + 13
D = (5 + 2x) - (- 7- 7x)
D = 5 + 2x + 7 + 7x
D = 9x + 12
E = x - 8 - (2 + 4x - (9 - 5x))
E = x - 8 - (2 + 4x - 9 + 5x)
E = x - 8 - 2 - 4x + 9 - 5x
E = - 8x - 1.
Bonjour :)
Bon courage !