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
8,748 is the answer because multiple all the number and get 8,748
4(-8x + 5) = -32x - 26
-32x + 20 = -32x - 26
-32x +32x = -20 - 26
0 = -46
unsolvable
hope this helps
Answer:
100
Step-by-step explanation:
Answer:
82.5 (assuming it is an arithmetic sequence)
Step-by-step explanation:
