This is LaTeX code:
[latex]
y_1=y_2\\ \frac53x+\frac13=\frac12x-2\quad/\cdot 6\\ 10x+2=3x-12\\7x=-14\\x=-2\\y=(\frac12\cdot -2)-2=-3\\\boxed{B=(-2,-3)}
[/latex]