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3x-5y=58
x= 14+y
3(14+y)-5y=58
42+3y-5y= 58
-2y=58-42
-2y= 16
y= 16/-2
y= -8
x= 14+y
x= 14-8
x= 6
Por Igualacion
x+y=16 x= 16-y
x-y=-2 x= -2+y
16-y= -2+y
-y-y= -2-16
-2y= -18
y= -18/-2
y= 9
x= 16-y
x= 16-9
x= 7