SOLUTION: y=2x and x+y=12

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Question 180598: y=2x and x+y=12
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.y=2x
2.x%2By=12
Directly substitute eq. 1 into eq. 2 and solve for x.
2.x%2By=12
x%2B%282x%29=12
3x=12
highlight%28x=4%29
Now use either equation to solve for y. Eq. 1 is quickest.
1.y=2x
y=2%284%29
highlight%28y=8%29