SOLUTION: I Missed A Day At School And My Teacher Is Not Able To Teach Me This At All, So Im Stuck. I Have The Problem 3x-y=1 2x=4y=3 And The Directions Say "Write The Matrix You Would

Question 675900: I Missed A Day At School And My Teacher Is Not Able To Teach Me This At All, So Im Stuck. I Have The Problem
3x-y=1
2x=4y=3
And The Directions Say "Write The Matrix You Would Use To Solve The Following Systems, Then Using Your Calculator (Which I Dont Have), Find The Solution To Each System.
I Literally Dont Understand This At All!
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
3x - y = 1
2x + 4y = 3
:
this would be a 2 by 3 matrix
3 -1 1
2 4 3
:
the matrix value are made up of the coefficients of x and y and the number
:
In your calc set the size of the matrix(2 by 3) then enter each value just as it is above.
Follow the rules of your calc to solve
:
This came out
[A]
[(3 -1 1]
(2 4 3)}
and the solution
rref([A])
[(1 0 .5); means x = .5
[0 1 .5); means y = .5
:
Of course you could solve this using elimination of substitution too
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