Question 459225
Please help me solve this 4x4 matrix using cramer's rule
-x1-4x2+2x3+ x4=-32
2x1- x2+7x3+9x4= 14
-x1+ x2+3x3+ x4= 11
 x1-2x2+ x3-4x4= -4

That is a system of equations, not a matrix.
Also, Cramer's rule involves determinants, 
not matrices.  To solve this by hand using
Cramer's rule with five 4x4 determinants would
take hours.

Here's the solution:  x1=5, x2=8, x3=3, x4=-1

Tell us what way you're supposed to solve it 
and we'll help you.  Did you mean Gaussian 
elimination? 

Edwin</pre>