Répondre :
a) 7 * x = 3
7x = 3
x = 3/7
b) x * 5 = 8
5x = 8
x = 8/5
c) x = 13 / 11
d) 13 * x = 11
13x = 11
x = 11/13
7x = 3
x = 3/7
b) x * 5 = 8
5x = 8
x = 8/5
c) x = 13 / 11
d) 13 * x = 11
13x = 11
x = 11/13