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7x - 4y = 8 (x-3) 3x + y = 11 (x-1)
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32x - 12y = 68 8x + y = 21
-21x +12y = -24 -3x - y = -11
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11x = 44 5x = 10
x = 4 x = 2
reemplazando reemplazando
7(4) - 4y = 8 3(2) + y = 11
28 - 4y = 8 6 + y = 11
20 = 4y Y = 5
5 = y
6x + 11v = -48
x + 11y = -8
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5x = - 40
x = -8
reemplazando
-8 + 11y = -8
11y = 0
y = 0