Question 267035
Curiously the other tutor made at least two mistakes and came up with the right answer.
{{{1/3x + 1/68y=0}}}
{{{1/2x - 1/4y =2 }}}
x=1/2 y=-1/4
but I suspect the equations should be 
{{{1/3*x + 1/6*y=0}}}
{{{1/2*x - 1/4*y =2}}}
which do yield x=2 and y=-4