3x – 2y = 1 2x + 3y = 18

Jawab: x = 3, y = 4

Penjelasan dengan langkah-langkah:

3x – 2y = 1 | ×3

2x + 3y = 18 | ×2

9x – 6y = 3

4x + 6y = 36

——————- +

13x = 39

x = 39/13

x = 3

Subsi:

2(3) + 3y = 18

6 + 3y = 18

3y = 18 – 6

3y = 12

y = 12/3

y = 4

Jadi HP { 3,4 }

Jawaban:

3x-2y=1 (×2)

2x+3y=18 (×3)

6x-4y=2

6x+9y=54

—————- –

-13y=-52

y=4

3x-2y=1

3x-2(4)=1

3x=1+8

3x=9

x=3