Réponse :
Explications étape par étape
Bonjour
Résoudre :
5(x + 3) = 3 + (2x - 6)
5x + 15 = 3 + 2x - 6
5x - 2x = -3 - 15
3x = -18
x = -18/3
x = -6
(x + 3)/3 - (4x - 1)/6 = 3 + x/3
2(x + 3)/6 - (4x - 1)/6 = 3 + x/3
2x + 6 - 4x + 1 = 6(3 + x/3)
-2x + 7 = 18 + 2x
-18 + 7 = 2x + 2x
4x = -11
x = -11/4
x = -2,75
-2(2x - 4) = 6x - (-3 + x)
-4x + 8 = 6x + 3 - x
8 - 3 = 5x + 4x
5 = 9x
x = 5/9
4x - 2 + (5x - 1) = -3(7 - x)
4x - 2 + 5x - 1 = -21 + 3x
9x - 3x = -21 + 3
6x = -18
x = -18/6
x = -3
(x + 5)/2 - (2x - 7)/5 = 2 + 3x/10
5(x + 5)/10 - 2(2x - 7)/10 = 2 + 3x/10
5x + 25 - 4x + 14 = 10(2 + 3x/10)
x + 39 = 20 + 3x
39 - 20 = 3x - x
19 = 2x
x = 19/2
x = 9,5
