SOLUTION: x-2y=5 and 4x+y=65

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Question 376543: x-2y=5 and 4x+y=65
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,

Solving by elimination of the y variable

x-2y=5 and 

4x+y=65



x -2y = 5 

8x+2y= 130  mulitplying 2nd equation by 2 to eliminate y

9x = 135

x = 15

solving for y

x - 2y = 5

15 - 2y = 5

10 = 2y

5 = y

CHECKING our Answer

x-2y=5

15 - 2*5 = 5