x=4y=2=2x=3y+6
3-x+2y=1-3x-2y
2(x+y)-(x-y)=4
3(x-2y)-4(y+1)=-8
To są układy równan trzeba policzyć x i y
2x+2y-x-y=4/2
3x-6y-4y-4=8/2
4x+4y-2y-2x=8
6x-12y-4y+8=16
2x+2y=8
2x+16y=16-8
---------------------
4x=16/4
x=4
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2x+2y-x-y=4/2
3x-6y-4y-4=8/2
4x+4y-2y-2x=8
6x-12y-4y+8=16
2x+2y=8
2x+16y=16-8
---------------------
4x=16/4
x=4