SOLUTION: substitution method 5x-2y=2 x+4y=0

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: substitution method 5x-2y=2 x+4y=0      Log On


   

Question 664923: substitution method
5x-2y=2
x+4y=0
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

substitution method

x+4y=0    0r  x+=+-4y

5x-2y=2

5%2A-4y-2y+=+2 , -22y = 2,  y = -1/11   and x = 4/11



Checking Using the elimination Method

5x-2y=2     |||Multiply 1st Eq thru by 2 and add to the 2nd EQ to eliminate y

x+4y=0

 11x = 4

   x = 4/11  and y = -1/11