Respuesta:
c) 2x - y = 4
Explicación paso a paso:
2x - y = 4
2(1) - y = 4
2 - y = 4
[-y = 4 - 2] (-1)
y = -2
2x -(-2) = 4
2x +2 = 4
2x = 4 - 2
2x = 2
x= 2 /2
x= 1
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Respuesta:
c) 2x - y = 4
Explicación paso a paso:
2x - y = 4
2(1) - y = 4
2 - y = 4
[-y = 4 - 2] (-1)
y = -2
2x - y = 4
2x -(-2) = 4
2x +2 = 4
2x = 4 - 2
2x = 2
x= 2 /2
x= 1