This is your last homework:

Solve the simultaneous equation system below by using both:

a$)$ Gauss Elimination Method, and

b$)$ LU Doolittle's Decomposition Method

with all details.

$(A)x_1+(2A)x_2+(5A)x_3-(28A)=0$

$(-B-1)x_1+(-3B-3)x_2+(2B+2)x_3-(-3B-3)=0$

$(D+1)x_1+(-D-1)x_2+(C+1)x_3-(4C-D+3)=0$

where $AB$ and $CD$ are the first $2$ and last $2$ digits of your school number, respectively.

ATTENTION: Prepare your homework by using MS Office Word, then convert it to PDF$.$ Do not do small street market calculation please A and B $=2$ C$=0$ D$=5$