tlong dijawab pake cara ya

semoga membantu ya ^^

5x + 9 = 2y

5x - 2y = -9 | ×4 |
6x + 8y = 10 | ×1 |
--------------------------
20x - 8y = -36
6x + 8y = 10
---------------------- +
26x = -26
x = -1

5x - 2y = -9
5 (-1) - 2y = -9
-5 - 2y = -9
-2y = -4
y = 2

Maka,
2y - 3x
= 2 (2) - 3 (-1)
= 4 + 3
= 7
Jawaban : E