calculer x dans les cas suivants:
5.5/x=3/4
3/1.5=2/x


Sagot :

5*(5/x) = 3/4
25/x = 3/4
25 = (3/4)x
x = 25*(4/3)
x = 100/3

(3/1)*5 = 2/x
15 = 2/x
15x = 2
x = 2/15