SOLUTION: . Solve the following system by substitution. 8x – 4y = 16 y = 2x - 4

Algebra ->  Algebra  -> Linear-equations -> SOLUTION: . Solve the following system by substitution. 8x – 4y = 16 y = 2x - 4       Log On

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Question 36733: . Solve the following system by substitution.
8x – 4y = 16
y = 2x - 4

Answer by Cintchr(475) About Me  (Show Source):
You can put this solution on YOUR website!
+8x+-+4y+=+16+
+y+=+2x+-+4+
Plug the second equation into the first
+8x+-+4%282x+-+4%29+=+16+
Distribute
+8x+-+8x+%2B+16+=+16+
combine x values
+16+=+16+
Since they are the SAME solution, it means they are the same line.