SOLUTION: solve the system by substitution. x + y = 12 y = 2x

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Question 110548: solve the system by substitution.
x + y = 12
y = 2x

Answer by HyperBrain(694)   (Show Source): You can put this solution on YOUR website!

But, . So,









Again, So,


Thus, x=4 and y=8.

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HyperBrain!

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