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Rezolvati sistemul de ecuatii prin metoda reducerii,cramer si grafica
x+y=6
3x-5y=2


Răspuns :

1 rind :x+y=6. {3x+3y=18 {3x+3y=18 {3x+3y=18 3X+6=18. x=4
2 rind:3x-5y=2. {3x-5y=2. {8y=16.
{y=2.

x=4. y=2