Question

dada a expressao ½ x -⅔, qual o valor numérico da expressão, quando x=½?

Answer 1

$x= \frac{1}{2}$

$\frac{1}{2}x- \frac{2}{3} \\ \\ \frac{1}{2}. \frac{1}{2} - \frac{2}{3} \\ \\ \frac{1}{4} - \frac{2}{3}$ Faz o MMC.

$\frac{3-8}{12} = \frac{-5}{12}$ ≈ $\boxed{\boxed{-0,41}}$