SOLUTION: solve the following by substitution 8x-4y=16 y=2x-4 8x-4(2x-4)=16 8x-8x+16=16 16=16 Double checking to make sure I did these right.

Algebra ->  Graphs -> SOLUTION: solve the following by substitution 8x-4y=16 y=2x-4 8x-4(2x-4)=16 8x-8x+16=16 16=16 Double checking to make sure I did these right.      Log On


   

Question 108404: solve the following by substitution
8x-4y=16
y=2x-4

8x-4(2x-4)=16
8x-8x+16=16
16=16
Double checking to make sure I did these right.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
You did the problem correctly. Since you get 16=16, this means that any x value will satisfy the equation. So there are an infinite number of solutions.