SOLUTION: x-4y=2 x+2y=8

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Question 15516: x-4y=2
x+2y=8
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the system of linear equations:
x+-+4y+=+2
x+%2B+2y+=+8 Subtract the first equation from the second equation, eliminating the x term and resulting in:
6y+=+6 Divide both sides by 6.
y+=+1 Now substitute this value of y into either of the two original equations and solve for x. Let's use the first equation.
x+-+4%281%29+=+2 Add 4 to both sides.
x+=+6
Solution is: (6, 1)
You can check this solution by substituting the x and y (6, 1) of the solution into the two equations and see that they are valid.
I'll leave this as an exercise for you.