Rozwiąż układ równań metodą podstawiania:
2(x-3y+2)-(2x+y-6)=3
3(x+y-3)+(4x-2y+2)=15
{2x-6y+4 -2x-y+6=3
{3x+3y-9+4x-2y+2=15
{-7y=3-4-6
{7x+y=15-2+9
{-7y=-7 /;(-1)
{y=1
{7x+1=22
{7x=22-1
{7x=21 /: 7
{x=3
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2(x-3y+2)-(2x+y-6)=3
3(x+y-3)+(4x-2y+2)=15
{2x-6y+4 -2x-y+6=3
{3x+3y-9+4x-2y+2=15
{-7y=3-4-6
{7x+y=15-2+9
{-7y=-7 /;(-1)
{y=1
{7x+1=22
{y=1
{7x=22-1
{y=1
{7x=21 /: 7
{y=1
{x=3
{y=1