$${\frac{{\mathtt{x}}}{{\mathtt{2}}}} = {\mathtt{1}}$$
$${\mathtt{1}}{\mathtt{\,\small\textbf+\,}}{\mathtt{x}} = {\mathtt{y}}$$
What is z.
From the first equation, x = 2.Substituting 2 into the second equation, y = 3.
The value of z? Who knows?
maybe $${\mathtt{\infty}}$$.
