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Sagot :
[tex]2x+3y=12\\3y=-2x+12\ /\ :\ 3\\y=-\frac23x+4\\a=-\frac23[/tex]
1.
[tex]6y-4x=2\\6y=4x+2\ /\ : 6\\y=\frac23x+\frac13\\a=\frac23[/tex]
2.
[tex]6y+4x=2\\6y=-4x+2\ /\ : 4\\y=-\frac23x+\frac13\\a=-\frac23[/tex]
3.
[tex]4x-6y=2\\-6y=-4x+2\ /\ : (-6)\\y=\frac23x-\frac13\\a=\frac23[/tex]
4.
[tex]6x+4y=-2\\4y=-6x-2\ /\ : 4\\y=-1,5x-0,5\\a=-1,5[/tex]
Answer: 2
1.
[tex]6y-4x=2\\6y=4x+2\ /\ : 6\\y=\frac23x+\frac13\\a=\frac23[/tex]
2.
[tex]6y+4x=2\\6y=-4x+2\ /\ : 4\\y=-\frac23x+\frac13\\a=-\frac23[/tex]
3.
[tex]4x-6y=2\\-6y=-4x+2\ /\ : (-6)\\y=\frac23x-\frac13\\a=\frac23[/tex]
4.
[tex]6x+4y=-2\\4y=-6x-2\ /\ : 4\\y=-1,5x-0,5\\a=-1,5[/tex]
Answer: 2
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