Question

dada a função afim f (x) =2x+3 determine o valor de x de f (x) =1/3

Answer 1

Bata igualar a função a 1\3
$2x+3= \frac{1}{3}$
$3(2x+3)=1$
$6x+9=1$
$6x=1-9$
$6x=-8$
$x=- \frac{8}{6}$ ( simplificando)
$x=- \frac{4}{3}$