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what its a system of equations solving for 3 variables so im lost
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The second equation should be x-4y-2z =-2, right?
take the third one subtract the second one, what do you get? that is (3) -(2) =??
i am trying to get rid of the x in all 3 equations so i have to set them to 0 im lost on the work
YOu lost on your way, give it a try on my way, ok? Again
(equation 3 )-(equation 2) is???
You should work on it, I am guiding you only.
@kal1921 what is the matrics
ok i have now
here, you have a system of two equations, with three unknows. We can rewrite it as below:
2x + 4y = 4 - 2z \hfill \\
2x + 3y = 21 + 2z \hfill \\
which can, easily solved for x, and y as functions of z. Please try