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Mathematics
11 January, 14:28
X + y = - 2 2x - 3y = - 9
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Nola Freeman
11 January, 14:48
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X + y = - 2
-x - x
y = - 2 - x
2x - 3y = - 9
2x - 3 (-2 - x) = - 9
2x + 6 + 3x = - 9
-6 - 6
5x = - 15
5x/5 = - 15/5
x = - 3
y = - 2 - x
y = - 2 - (-3)
y = - 2 + 3
y = 1
the answer: (-3,1)
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