Question 922954
x+y = 0 leads to y = -x


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x+3y = -4


x + 3(-x) = -4


x - 3x = -4


-2x = -4


x = -4/(-2)


x = 2


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y = -x


y = -2


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The solution as an ordered pair is <font size=5 color="red">(2, -2)</font>


Notice how y is -2 and NOT +2.



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