SOLUTION: Solve the system; x+y=20 x-y=8

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Question 101101: Solve the system;
x+y=20
x-y=8
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
X+Y=20
X-Y=8 NOW ADD THESE 2 EQUATIONS.
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2X=28
X=28/2
X=14 ANSWER.
14+Y=20
Y=20-14
Y=6 ANSWER.
PROOF
14-6=8
8=8