SOLUTION: solve edach systems by substitution: 8x-4y=16 y=2x-4

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Question 106833: solve edach systems by substitution:
8x-4y=16
y=2x-4
Answer by HyperBrain(694) About Me  (Show Source):
You can put this solution on YOUR website!
8x-4y=16
y=2x-4
Substituting y=2x-4 to 8x-4y=16,
8x-4%282x-4%29=16
8x-%288x-16%29=16
%288x-8x%29%2B16=16
%288x-8x%29%2B16=16
0%2B16=16
16=16 ------------------TRUE!!!

We did not find the values of x and y---but, 16=16 is a true statement.

Therefore, there is an infinite no. of solutions.!

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HyperBrain!