SOLUTION: Solving Systems of Equations in Three Variables. 2r+s+t=14 -r+-3s+2s=-2 4r-6s+3s=-5 How do i get to the two systems of the equation using elimanatio

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Question 99968This question is from textbook Algebra 2
: Solving Systems of Equations in Three Variables.
2r+s+t=14
-r+-3s+2s=-2
4r-6s+3s=-5
How do i get to the two systems of the equation using elimanation and to find the first variable?
This question is from textbook Algebra 2

Answer by fastblue(13) (Show Source):
You can put this solution on YOUR website!
First, are you sure you wrote these correct, as a couple of the equations dont have T's, but you multiply one by a constant then subtract from the second equation to get one term to drop out, then take the resultant time another constant and subtract from the remaining equation to get down to one constant.