Plissss Bantu ya... Hair ini juga di kumpul, tolong yaa

Maaf kalo jwbannya gk jelas

7x - 9y = 8. (dikalikan 2) 14x - 18y = 16
2x -12y = 4 (dikalikan 7) 14x - 84y = 28
---------------------- -
-66y = - 12
y = 12/66 = 2/11
2x - 12 (2/11 ) = 4
2x - 24 /11 = 4
2x = 4 + 24/ 11
2x = ( 44 +24 )/11
2x = 68/11
x = 34/11