SOLUTION: y=-x+5 y=2x-4 This is the problem I have to do. Can you use any method for solving systems of equation? Can you also explain the problem?

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Question 641508: y=-x+5
y=2x-4
This is the problem I have to do. Can you use any method for solving systems of equation? Can you also explain the problem?
Found 2 solutions by reviewermath, MathTherapy:
Answer by reviewermath(1029) About Me  (Show Source):
You can put this solution on YOUR website!
Solved by pluggable solver: Linear System solver (using determinant)
Solve:
+system%28+%0D%0A++++1%5Cx+%2B+1%5Cy+=+5%2C%0D%0A++++2%5Cx+%2B+-1%5Cy+=+4+%29%0D%0A++

Any system of equations:


has solution

or



(x=3, y=2}

Answer by MathTherapy(10551) About Me  (Show Source):
You can put this solution on YOUR website!

y=-x+5
y=2x-4
This is the problem I have to do. Can you use any method for solving systems of equation? Can you also explain the problem?

y+=+-+x+%2B+5____eq__%28i%29
y+=+2x+-+4_____eq_%28ii%29

Since y = - x + 5, and y = 2x - 4, then:
- x + 5 = 2x - 4
- x - 2x = - 4 - 5
- 3x = - 9

x+=+%28-+9%29%2F-+3, or highlight_green%28x+=+3%29

y = - 3 + 5 ------ Substituting 3 for x in eq (i)

highlight_green%28y+=+2%29

You can do the check!!

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