7-3(x+5) = 7(2-2x) résoudre l'équation

7-3x-15 = 14 - 14x
-8 - 3x = 14-14x
14x - 3x = 14+8
11x = 22

x = 22/11 = 2
Donc x = 2

7-3x-15 = 14-14x
-3x-8 = 14-14x
-3x+14x = 8+14
11x = 22
x = 2