You can put this solution on YOUR website! here is the system
(i)
(ii)
step 1 - multiply (i) by 6 and (ii) by 4 to get
(iii)
(iv)
step 2 - add down to get
(v)
divide to get
(vi)
solving for y we get
(vii)
You can put this solution on YOUR website! Curiously the other tutor made at least two mistakes and came up with the right answer.
x=1/2 y=-1/4
but I suspect the equations should be
which do yield x=2 and y=-4