Matrix A was expressed in the form of a 2x2
i'm not sure if this helps or not but here you go
For this case we must find the value of the variable of the following equation:

Subtracting
from both sides:

Subtracting 4 from both sides:

Multiplying by 6 on both sides:

Answer:

The number would be 1 because
3+1= 4x4= 16
Answer:

Step-by-step explanation:
Find distance between B and market: |B-M|=|M-B|
Distance between A and B:
, call this equation (1)
Distance between A and market
, call this equation (2)
Solve (1) - (2)

I did know of the understanding of math high school?