Respuesta:
x = 3
y = -1
Explicación paso a paso:
2x - y = 7 (4)
3x + 4y = 5
8x - 4y = 28
------------------
11x // = 33
x = 33/11
3(3) + 4y = 5
9 + 4y = 5
4y = 5-9
4y = -4
y = -4/4
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Respuesta:
x = 3
y = -1
Explicación paso a paso:
2x - y = 7 (4)
3x + 4y = 5
8x - 4y = 28
3x + 4y = 5
------------------
11x // = 33
x = 33/11
x = 3
3(3) + 4y = 5
9 + 4y = 5
4y = 5-9
4y = -4
y = -4/4
y = -1