UTS-ALJABAR LINEAR-2014

NAMA : YOHANES HENUK
NIM  :13110237

JAWABAN MIDLE TEST ALJABAR LINEAR :

1.     1.                               2x – 3y  = 5
                 -3x + y  = 2

penyelesaian :

2x – 3y = 5 |-3|            -6x – (-9y) = -15
-3x + y = 2 |2|              -6x + 2y =       4 -   

                                              7y = - 19

                                                y = -19

                                                        7

2x – 3y = 5

2x – 3y (- 19/7) = 5

2x – 57 = 5

         7

2x + 5 – 57

               7

X = ( 5 – 57

                7

                2

2. 

3.