SOLUTION: how do i solve the following 4 x 4 system using elimination & substitution? w + 2x + 2y + z = -2 w + 3x - 2y - z = -6 -2w - x + 3y + 3z = 6 w + 4x + y

SOLUTION: how do i solve the following 4 x 4 system using elimination & substitution? w + 2x + 2y + z = -2 w + 3x - 2y - z = -6 -2w - x + 3y + 3z = 6 w + 4x + y - 2z = -14

Question 1059434: how do i solve the following 4 x 4 system using elimination & substitution?
w + 2x + 2y + z = -2
w + 3x - 2y - z = -6
-2w - x + 3y + 3z = 6
w + 4x + y - 2z = -14
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
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Eliminate w by using elementary row operations,
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So now your reformed equations are,
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Continue in this fashion until you have solved for one variable and then work backwards.
You can eliminate by these row operations,
and

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