SOLUTION: i have to sole it algebraically 2y=8-x y-2x=-1

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Question 145527: i have to sole it algebraically
2y=8-x
y-2x=-1
Found 2 solutions by Alan3354, stanbon:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
2y=8-x
y-2x=-1
I don't know what "solving it algebraically" means.
y-2x=-1
y = 2x-1
Substitute for y in the 1st eqn
2(2x-1)=8-x
4x-2=8-x
5x = 10
x = 2
y=2x-1
y = 3

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
2y=8-x
y-2x=-1
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Rearrange:
x = 8-2y
y = 2x-1
------------
Substitute to get:
y = 2(8-2y)-1
y = 16-4y-1
5y = 15
y = 3
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Substitute to solve for "x":
x = 8-2(3)
x = 2
---------------------
Cheers,
Stan H.