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

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


   

Question 36733: . Solve the following system by substitution.
8x – 4y = 16
y = 2x - 4
Answer by Cintchr(481) 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.