SOLUTION: How do I solve this question I just can't figure it out. -3x+2y-z/-3y+4z, x=-5,y=2,z=-1 HELP please

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Question 773146: How do I solve this question I just can't figure it out.
-3x+2y-z/-3y+4z, x=-5,y=2,z=-1
HELP please
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

%28-3x%2B2y-z%29%2F%28-3y%2B4z%29..I guess this is what you have
if given x=-5,y=2,z=-1, substitute in given expression

%28-3%28-5%29%2B2%2A2-%28-1%29%29%2F%28-3%2A2%2B4%28-1%29%29
%2815%2B4%2B1%29%2F%28-6-4%29
20%2F-10
-2