A few days ago
I really need help with linear combination with 3 variables?
I don’t know if I can go on in my Alg2 class. I might drop it and just wait until Jr. year when I am actually supposed to take it. Anyway, Linear Combination w/ three variables.
3x+2y-z=8
-3x+4y+5z= -14
x-3y+4z= -14
I can’t get past the first step. I know I would cancel the 3x and -3x leaving me with 6y+4z= -6. But where do I go from there? Please help.
Top 1 Answers
A few days ago
Favorite Answer
Purplemath.com is a good site to get these explanations:
http://www.purplemath.com/modules/systlin6.htm
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