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jekas [21]
3 years ago
12

35 POINTS. I need help! Please!

Mathematics
1 answer:
topjm [15]3 years ago
7 0
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 
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