Billy M. answered • 05/23/18

Tutor

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Need a math tutor? I am a local Albany State Univ. math tutor

using your TI-83 calculator, press end-matrix-edit and enter the following 4x4 matrix

(1,1,-1,1),(1,3,3,-1),(1,1,1,0),(0,0,0,0)

next press 2nd-quit to save

next press 2nd-matrix-math-rref(

enter

rref(a) on home panel , enter

(1,0,0,1/2),(0,1,0,0),(0,0,1,-1/2)

back filling the rows

x=1/2, y=0,z=-1/2