{6x+4y=8
+{-6x+2y=10
--------------
6y=18I :6
y=3
{6x+4=8
{-6x+2y=10 I*(-2)
+{12x-4y=-20
-----------------
18x=-12 I:18
x=-12/18=-4/6=-2/3
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{6x+4y=8
+{-6x+2y=10
--------------
6y=18I :6
y=3
{6x+4=8
{-6x+2y=10 I*(-2)
{6x+4=8
+{12x-4y=-20
-----------------
18x=-12 I:18
x=-12/18=-4/6=-2/3