bonsoir
x
2 x
2 x + 5
h (x) = 2 x + 5
h ( 1/3) = 2 *1/3 + 5 = 2 /3 + 5 = 2/3 + 15/3 = 17 /3
2 x + 5 = 9
2 x = 4
x = 2
