Question 176598
lets re write the equations and line up the variables from each equation.
:
3w-1x-2y-z=-4
0w+9x-1y+z=10
4w+0x+3y-z=7
0w+12x-2y+z=-11
:
{{{(matrix(4,5,3,-1,-2,-1,-4,0,9,-1,1,10,4,0,3,-1,7,0,12,-2,1,-11))}}}