THE answer is 17 because 2X2= 4+13= 17
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ANSWER: I think that the answer is 28.26
Step-by-step explanation:
I did this a while ago. I hope that I helped<3
There is no solution for the first one
if you eliminate y you get 2 equations
-13x - 13z = -25
-13x - 13x = -15
- there is no solution to theses
a23 means the element in the second row and the 3rd column
so its -5