RESPUESTA:
5x + 3y = 7
3(x - y = 3)
__________
3x -3y = 9
8x = 16
x = 2//
REEMPLAZAMOS:
x - y = 3 => 2 - y = 3
-y = -1
y = 1//
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RESPUESTA:
5x + 3y = 7
3(x - y = 3)
__________
5x + 3y = 7
3x -3y = 9
__________
8x = 16
x = 2//
REEMPLAZAMOS:
x - y = 3 => 2 - y = 3
-y = -1
y = 1//