bonjour
tu as un exemple sous les yeux
5 x + 10 = 5 x + 2 *5 = 5 ( x + 2 )
6 x - 24 = 6 x - 6 * 4 = 6 ( x - 4 )
36 - 4 x = 9 *4 - 4 x = 4 ( 9 - x )
7 x + 14 = 7 x + 7 *2 = 7 ( x + 2 )
35 - 5 x = 5 *7 - 5 x = 5 ( 7 - x )
8 x - 24 = 8 x + 8 *3 = 8 ( x + 3 )
12 x + 18 = 6 * 2 x + 6 *3 = 6 ( 2 x + 3 )
6 - 15 x = 2 * 3 - 3 * 5 x = 3 ( 2 - 5 x )
30 x - 42 = 6 * 5 x - 7 *6 = 6 ( 5 x - 7 )
