SOLUTION: Y=2x-7 x+y=11 with all work and solve for x and y i just dont get it

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Question 177863: Y=2x-7
x+y=11
with all work and solve for x and y
i just dont get it

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Y=2x-7
x+y=11
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There are a number of ways to solve this system.
One way is called substitution:
Since y = 2x-7 substitute that into the 2nd equation and solve for "x":
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x + (2x-7) = 11
x + 2x - 7 = 11
3x = 18
x = 6
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Since y = 2x-7,y = 2*6-7 = 12-7 = 5
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Ans: y = 5 and x = 6
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Cheers,
Stan H.
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