Question

TOLONG BANTU CEPAT ¡¡¡ tentukan hp penyelesaian dan fungsi linear
a. 2x +3y=6
x-y =2
b.4x + 2y =6
x+2y=3

Answer 1

A. 2x +3y=6 |x1| 2x + 3y = 6
x-y =2 |x2| 2x - 2y = 4
               ------------------ -
               5y = 2
                 y = 2/5
x - y = 2
x = 2 + 2/5
x = 10 + 2 / 5
x = 12/5

b.4x + 2y =6
x+2y=3
----------------- -
3x = 3
x = 1

x + 2y =3
2y = 3 - 1
y = 2/2 = 1