SOLUTION: solve the following 3x3 equations by using an algebraic method to get an exact point of intersection. state that the planes are parallel or coincident.
x+y+z=-2
x-y+2z=-5
3x+y
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-> SOLUTION: solve the following 3x3 equations by using an algebraic method to get an exact point of intersection. state that the planes are parallel or coincident.
x+y+z=-2
x-y+2z=-5
3x+y
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Question 905036: solve the following 3x3 equations by using an algebraic method to get an exact point of intersection. state that the planes are parallel or coincident.
x+y+z=-2
x-y+2z=-5
3x+y+z=-12 Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! x+y+z=-2 x-y+2z=-5 2x + 3z = -7 3x+y+z=-12 4x + 3z = -17
............
2x + 3z = -7 |multiplying thru by -2 to eliminate the x variable by adding the Eqs 4x + 3z = -17
-3z = -3
z = 1, and x = -5
and
y = 2
The ordered triple (-5, 2, 1) the solution for this System of EQs
