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sistem 2x-y=1
6x+2y=0 le puteti rezolva....?


Răspuns :

2x-y=1  /*-3
6x+2y=0
-6x+3y=-3
6x+2y=0
/      5y=-3
       y=-3/5
2x-(-3/5)=1
2x+3/5=1
10x+3=5
10x=5-3
10x=2
x=2/10
x=1/5