SOLUTION: solve each system using substitution. Write no solution or infinitely many solutions where appropriate. 4x+2y=8 y=-2x+4

Algebra ->  Expressions-with-variables -> SOLUTION: solve each system using substitution. Write no solution or infinitely many solutions where appropriate. 4x+2y=8 y=-2x+4      Log On


   

Question 256343: solve each system using substitution. Write no solution or infinitely many solutions where appropriate.
4x+2y=8
y=-2x+4
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
4x%2B2y=8
y=-2x%2B4
Substitute directly for y in the first equation using the second.
4x%2B2y=8
4x%2B2%28-2x%2B4%29=8
4x-4x%2B8=8
8=8
The two lines are the same line, infinite number of solutions.