Find the solution to the equations. 3x - y = -4 x + y = 0. (0, 0), (-1, 1), (1, -1),
3x - y = -4 x + y = 0 (3x - y = -4) + (x + y = 0) 4x = -4 x = -4/4 x = -1 3(-1) - y = -4 -3 - y = -4 -y = -4 + 3 -y = -1 y = 1 Solution set: (-1, 1)
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Question
Updated 3/6/2018 10:27:06 PM
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8
3x - y = -4
x + y = 0

(3x - y = -4) + (x + y = 0)
4x = -4
x = -4/4
x = -1

3(-1) - y = -4
-3 - y = -4
-y = -4 + 3
-y = -1
y = 1

Solution set: (-1, 1)

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