Solve the following by simplex method

Minimize $f=x-y$

subject to

$x-y-8$

$5x-y0$

$x+y8$

$-x+6y12$

$5x+2y68$

$x10$

$x0,y0$

Please use surplus,slack variable and pivotal operation. Donnot skip the calculation process and go into detail.