Sagot :
Réponse :
A = 2x + 4 - (8x - 9)
A= -6x+13
B = 3t + 0,1 - (4,5 - 6t) + [12 - (3,2 + t)]
B= 9t-4,4+8,8-t
B= 8t+4,4
C = 3a - 7+ (2a + 5) + (3a - 10)
C= 8a-12
D = -4(8x - 3) + 6(-5x + 3)
D= -32x+12-30x+18
D= -62x+30
E = 5(1,1t + 3,5) - 8(0,4t - 3)
E= 5,5t+17,5-3,2t+24
E= 2,3t+41,5
F = -0,5(4 – 0,5x) + 20(-0,1x - 5) -8(0,5x + 3)
F= -1+0,25x-2x-100-4x-24
F=-5,75x-126
Explications étape par étape :
Bonjour,
Réduire:
A = 2x + 4 - (8x - 9)
A= 2x+4-8x+9
A= -6x+13
B = 3t + 0,1 - (4,5 - 6t) + [12 - (3,2 + t)]
B= 3t+0.1-4.5+6t+12-3.2-t
B= 8t+4.4
C = 3a - 7+ (2a + 5) + (3a - 10)
C= 3a-7+2a+5+3a-10
C= 8a-12
D = -4(8x - 3) + 6(-5x + 3)
D= -32x+12-30x+18
D= -62x+30
E = 5(1,1t + 3,5) - 8(0,4t - 3)
E= 5.5t+17.5-3.2t+24
E= 2.3t+41.5
F = -0,5(4 – 0,5x) + 20(-0,1x - 5) -8(0,5x + 3)
F= -2+0.25x -2x-100-4x-24
F= -5.75x-126