Step-by-step explanation:
First, let us assume x = share of the first person who owns 6 tacos and y = the share of the other person whom x shared his tacos with.
[tex]6 = x + y \\ but \: y = 1.6 + x \\ 6 = x + (1.6 + x) \\ 6 - 1.6 = x + x \\ \frac{4.4}{2} = \frac{2x}{2} \\ 2.2 = x \\ \\ y = 1.6 + x \\ = 1.6 + 2.2 \\ = 3.8[/tex]