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[tex] \left \{ {{3|x|-2y=12} \atop {5|x|+4y=-2}} \right. [/tex]

Răspuns :

{ 3x-2y =12  |2
{ 5x+4y=-2  

{6x-4y=24
{5x+4y=-2
11x /=22
x=2

3*2-2y=12
-2y=12-6
-2y=6
y=-3
{ 3x-2y =12  |2{ 5x+4y=-2  
{6x-4y=24{5x+4y=-211x /=22x=2
3*2-2y=12-2y=12-6-2y=6y=-3 NU stiu sigur,cred