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14-06-2017
Mathematics

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Solve the following system of equations by using the substitution method. x = 4 - 2y 4x + 8y = 16

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15-06-2017

x = 4 - 2y

4x + 8y = 16

4(4-2y) + 8y = 16

16 - 8y + 8y = 16

8y - 8y = 16 - 16

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