Step-by-step explanation:
Below is an attachment containing the solution.
X+1+X+1+X+X=50
4x+2=50
4x=48
X=12
Width is 12
Length is 13
Mxn Matrices do not have an inverse solution for m ≠ n, so your 2x4 will not have a solution.
<span>Generally, inverting matrices is done through finding the determinant of the square matrix and then performing an operation on the matrix based on the size of the matrix. </span>
<span>Wikipedia has a good article on Matrix inversion, take a look there for more information.</span>
- 4(20+22)
- 4(40+2)
This expression are equivalent to 4(42)