{5x/2+y/5=-4|*10
{x/3-y/6=1/6|*6
{25x+2y=-40
{2x-y=1|*2
+{25x+2y=-40
+{4x-2y=2
29x=-38|:29
x=-38/29
-38/29*2-y=1
-y=1+76/29
-y=1 76/29|:(-1)
y=-1 76/29
{3(x-y)+5x=2(3x-2)
{4x-2(x+y)=4-3y
{3x-3y+5x=6x-4
{4x-2x-2y=4-3y
{8x-6x-3y=-4
{2x-2y+3y=4
-{2x-3y=-4
-{2x+y=4
-4y=-8|:(-4)
y=2
2x-6=-4
2x=-4+6
2x=2|:2
x=1