tolong dikerjakan dengan caranya

10.)
1/3x + 2/5y = 4/15 [×15]
= 5x + 6y = 4

3/4x - 1/2y = 2 [×4]
= 3x - 2y = 8

*Mencari y
5x + 6y = 4 [×3]
3x - 2y = 8 [×5]


15x + 18y = 12
15x - 10y = 40
____________-
28y = - 28
y = - 1

*Mencari x
5x + 6y = 4 [×1]
3x - 2y = 8 [×3]


5x + 6y = 4
9x - 6y = 24
__________+
14x = 28
x = 2


Jawabannya [(2, - 1)] (B)


Maaf cma bisa jawab satu





GL!