kerjakan nomer 13-15 dan 19-25 makasih poin lumayan

13. 2y-1/2 = 2/3
=> 2y = 2/3 - 1/2
=> 2y = 4/6 - 3/6
=> y = 1/6 + 2/1
y = 1/12

14. 7y-4=5y
=> 7y-5y = 4
=>2y = 4
=> y = 4:2
y = 2

15. 3y = 15+6y
3y-6y = 15
-3y = 15
-y = 15:3
-y = 5 >> y = -5

ini jawabannya

maaf kalo jawabannya salah