Question

calcule o valor numerico das equaçoes 2a+b para a =-1/2e b=2/8

Answer 1

2 ( - $\frac{1}{2}$   ) +$\frac{2}{8}$=

-$\frac{2}{2}$ + $\frac{2}{8}$=

$\frac{-2+8}{2}$=

$\frac{6}{2}$=

$\frac{3}{1}$