Page 18 - BAB 1 SISTEM PERSAMAAN LINEAR

C B

X = R Q

A B
P Q

Ax + By = C
Px + Qy = R dicari sebagai berikut

A C

Y = P R

A B
P Q

Contoh:

4X + Y = 17
6X + 3Y = 33

17 1
17  3 - 331
33 3
X = =

4 1 (4  3) - (61)
6 3

X = 18/6 = 3

4 17
4  33 - 617
6 33
Y = =

4 1 (4  3) - (61)
6 3

Y = (132-102)/6 = 30/6 = 5