SOLUTION: 2y+x=4 4y=x-1

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Question 27066: 2y+x=4
4y=x-1
Answer by mbarugel(146) About Me  (Show Source):
You can put this solution on YOUR website!
The best way to solve these 2x2 linear systems is to first write them in the following form:
Ax + By = C
Dx + Ey = F
And then use the general formula (which you'll find below) to find the solution. We have:
2y%2Bx=4
which is the same as 1x+%2B+2y+=+4
We also have
4y+=+x+-+1
which is the same as:
1x+-+4y+=+1
So we have the system:
1x+%2B+2y+=+4
1x+-+4y+=+1
Solved by pluggable solver: Linear System solver (using determinant)
Solve:
+system%28+%0D%0A++++1%5Cx+%2B+2%5Cy+=+4%2C%0D%0A++++1%5Cx+%2B+-4%5Cy+=+1+%29%0D%0A++

Any system of equations:


has solution

or



(x=3, y=0.5}