Nomer 39 plssssss ;)​

Jawab: A

Penjelasan dengan langkah-langkah:

5x + 6y = 7 |×3|

3x + 4y = 5 |×5|

15x + 18y = 21

15x + 20y = 25

———————— –

-2y = -4

y = 2

3x + 4y = 5

3x + 4(2) = 5

3x + 8 = 5

3x = -3

x = -1

HP = {-1, 2}