Resolva pelo método da substituição
A) X-Y=-3
3X + 2Y= 16
B) X-Y= 2
2X + Y= 13
C) X+Y= 2
2X - Y= 4
D) X+Y = 4
X-Y= 2
A) X-Y=-3
3X + 2Y= 16
B) X-Y= 2
2X + Y= 13
C) X+Y= 2
2X - Y= 4
D) X+Y = 4
X-Y= 2
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