Can someone set up this question for me? I am really struggling/:
5x - 2y + 3z = -23
-x - 2y + 2z = 5
10x + y - 4z = -11
Q1 choose a fav variable
A1
Q2 pick a pair of equations, eliminate the fav variable
A2
Q3 pick another pair, eliminate that same fav
A3
Q4 now you have only 2 variables in 2 equations, like a+b=7 & a-2b=13
A4
Q5 pick a second fav
A5
Q6 add equations together and eliminate it
A6
Q7 solve for second fav
A7
Q8 sub second fav into equation and find last variable
A8

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@phi 4x + 5z = -28 ??

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