{2x+5y=9
{-3x+4y=-2
{2x+5y=9 /*3
{-3x+4y=-2 /*2
{6x+15y=27
{-6x+8y=-4
_____________
23y=23
{y=1
{2x+5*1=9
{2x=9-5
{2x=4
{x=2
{2x+5y=9 /3
{-3x+4y=-2 / 2
-----------------
{15y=27
{8y=-4
{23y=23 /23
y=1
2x+5y=9
2x+5*1=9
2x+5=9
2x=9-5
2x=4 /2
x=2
Odp. x=2 y=1
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{2x+5y=9 /*3
{-3x+4y=-2 /*2
{6x+15y=27
{-6x+8y=-4
_____________
23y=23
{y=1
{2x+5*1=9
{y=1
{2x=9-5
{y=1
{2x=4
{y=1
{x=2
{2x+5y=9
{-3x+4y=-2
{2x+5y=9 /3
{-3x+4y=-2 / 2
{6x+15y=27
{-6x+8y=-4
-----------------
{15y=27
{8y=-4
{23y=23 /23
y=1
2x+5y=9
2x+5*1=9
2x+5=9
2x=9-5
2x=4 /2
x=2
Odp. x=2 y=1