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x = -4y so 3x = -12y

Substituting in the second equation, -12y + 2y = 20 or -10y = 20 ie y = -2

And then x = -4y implies that x = 8

Solution: x = 8, y = -2

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14y ago
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Q: X equals -4y 3x plus 2y equals 20?
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