Répondre :

[tex] \frac{11x}{3} = \frac{22}{9} [/tex]
11x= 22/9*3
11x=66/9
11x=22/3
x=22/3*1/11
x=2/3

[tex] \frac{4}{13} x= \frac{6}{26} [/tex]
x= 6/26*13/4
x= 3/13*13/4
x= 3/4

9x/2= 3/6
9x = 3/6*2
9x= 6/6
x= 1/9