Réponse:
Bonsoir
Explications étape par étape:
• 4x - 5 + 3 = x - 9 + x - 13
• 4x - 2 = 2x - 22
• 4x - 2x = -22 + 2
• 2x = -20
x = -10
• x - ( 3 + 2x) = 5x + 12
• x - 5 = 5x + 12
• x - 5x = 12 + 5
• -4x = 17
x = -17/4
• (2x - 1) - (2 + x)-7 = 3x + 7
• x - 10 = 3x + 7
• x - 3x = 7 + 10
• -2x = 17
x = -17/2
• 3x - 2( x - 4) = 5 + 4(1 - 2x)
• 3x - 2x + 8 = 5 + 4 - 8x
• x + 8 = 9 + 8x
• x + 8x = 9-8
• 9x = 1
x = 1/9
• 6 + 2(8 + 6x) - 9(3x + 4) = 0
• 6 + 16 + 12x - 27x - 36 = 0
• -14 -15x = 0
x = -14/15
• 2(3 - 2x) = 3(2 + 2x)
• 6 - 4x = 6 + 6x
• -4x = 6x
• -4x - 6x = 0
x = 0
