Question

Himpunan penyelesaian dari persamaan 2x + 3 y = 13 dan 3x – 2y = 0, maka ...

Answer 1

2x + 3y = 13 | ×3
3x - 2y = 0 | ×2
-------------------------
6x + 9y = 39
6x - 4y = 0 -
---------------------
13y = 39
y = 39 : 13
y = 3

3x - 2y = 0
3x - 2 × 3 = 0
3x - 6 = 0
3x = 6
x = 6 : 3
x = 2

HP = {(2, 3)}

Answer 2

2x + 3y = 13 x3 6x + 9y = 39
3x - 2y = 0 x2 6x - 4y = 0
____________ _
13y = 39
Y = 39/13
Y = 3


3x - 2y = 0
3x - 2.3 = 0
3x - 6 = 0
3x = 6
X = 6/3
X = 2

HP = (x,y) = (2 , 3)

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