SOLUTION: if your dealing with linear equations and it set up in this format : 2x + y =5 x-y = 4 how do you solve and

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Question 576020: if your dealing with linear equations and it set up in this format : 2x + y =5
x-y = 4
how do you solve and or graph the problem im very confused
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
2x + y =5
Plot 2 points:
Let x = 0, then y = 5
Let y = 0, then x = 5/2
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Plot (0,5) and (5/2,0) and draw a line thru them.
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x-y = 4
Plot 2 points:
Let x = 0, then y = -4
Let y = 0, then x = 4
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Plot (0,-4) and (4,0) and draw a line thru them.
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graph%28400%2C400%2C-10%2C10%2C-10%2C10%2C-2x%2B5%2Cx-4%29
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Solution: (3,-1)
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Cheers,
Stan H.