1 1/2x-1 1/5y=6
2 1/5x+ 1/5y=-1
To wszystko w klamrze bo to układ równań
{1 1/2x-1 1/5y=6
{2 1/5x+1/5y= -1
{3/2x-6/5y=6 /*10
{11/5x+1/5y=-1 /*5
{15x-12y=60
{11x+y= -1
{5x-4y=20
{y= -1-11x
{5x-4(-1-11x)=20
{5x+4+44x=20
{49x=16
{x=16/49
{y= -1-11*16/49
{y= -4 29/49
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{1 1/2x-1 1/5y=6
{2 1/5x+1/5y= -1
{3/2x-6/5y=6 /*10
{11/5x+1/5y=-1 /*5
{15x-12y=60
{11x+y= -1
{5x-4y=20
{y= -1-11x
{5x-4(-1-11x)=20
{y= -1-11x
{5x+4+44x=20
{y= -1-11x
{49x=16
{y= -1-11x
{x=16/49
{y= -1-11*16/49
{x=16/49
{y= -4 29/49