Question

Dada a função f(x)=2x-1/2, calcular: f(2/3)

Answer 1

f(x)=2
$= 2 \ \frac{2}{3} - \frac{1}{2 }$
$\frac{4}{3} - \frac{1}{2}$
$\frac{8 - 3 }{6}$
$\frac{5}{6}$
espero ter ajudado