Bonjour,
Réponse :
x = 20
x = 15/2
x = 6
x = 27/4
Explications étape par étape :
Trouver x tel que :
x/12 = 5/3
x = 5 * 12/3
x = 5 * (3 * 4)/3
x = 5 * 4
x = 20
2/5 = 3/x
x = 3 * 5/2
x = 15/2
4/6 = x/9
x = 9/6 * 4
x = (3 * 3)/(3 * 2) * 4
x = 3/2 * 4
x = 3 * 4/2
x = 3 * (2 * 2)/2
x = 3 * 2
x = 6
2/x = 8/27
x = 2 * 27/8
x = 2/8 * 27
x = 2/(2 * 4) * 27
x = 1/4 * 27
x = 27/4
