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4x+3y=13
reduccion
3(6x-5y= -9)......................18x-15y= -27
5(4x+3y=13)......................20x+15y=65
38x=38.........x=38/38............x=1
si x=1
6x-5y= -9
6(1)-5y= -9
6-5y= -9
-5y= -9-6
-5y= -15
y= -15/-5
y=3
respuesta: x=1 y=3