123KINGAWALL321 123KINGAWALL321

17-06-2016
Mathematics

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Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9

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williambusby williambusby

17-06-2016

x = -2 -y
Substitute this into your second equation
2( -2 -y) - 3y = -9
-4 - 2y -3y = -9
5y = 5
y = 1
Substitute this into either equation and solve that x = -3

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