solve one side for y, the second equation looks easier to solve for y.
-2x +y =8 add 2x on both sides
y= 8 + 2x plug this into y for the first equation
3x + 2 (8 + 2x) = 2 multiply out the 2
3x + 16 + 4x = 2 combin like terms
16+7x =2 subtract 16 from both sides
7x = -14
x = -2 is one answer, take this number and plug it in to the equation to get the y value as well.