Explicación paso a paso:
7x+3y=2. (7)
11x -7y=9. (3)
49x + 21y = 14. se suma
33x - 21y =. 27
_____________
82x=41
x=41/82
x=1/2
hallamos y
33(1/2) - 21y =27
33-42y = 54
33-54=42y
-21=42y
y=-21/42
y=-1/2
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Verified answer
Explicación paso a paso:
7x+3y=2. (7)
11x -7y=9. (3)
49x + 21y = 14. se suma
33x - 21y =. 27
_____________
82x=41
x=41/82
x=1/2
hallamos y
33(1/2) - 21y =27
33-42y = 54
33-54=42y
-21=42y
y=-21/42
y=-1/2