1 Answer

Aaron J Lang · Answer 1 · 2016-06-15T14:14:27+0000

4x = y - 1 ⇒ 4x + y = -1 ⇒ 12x + 3y = -3
6x - 2y = -3 ⇒ 6x - 2y = -3 ⇒ 12x - 4y = -6
7y = 3
7 7
y = 3/7
12x + 3(3/7) = -3
12x + 1 3/7 = -3
-1 2/7 -1 2/7
12x = -4 2/7
12 12
x = -5/14
(x, y) = (-5/14, 3/7)

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