tolong yaa jawabpin karna besok aku mau ngumpulin

4)
9/12 = 12/(12 + p)
12.12 = 9(12 + p)
144 = 9(12 + p)
16 = 12 + p
4 = P

5)
6/10 = 3/x
6x = 30
x = 5

6)
6/10 = y/10
60 = 10y
6 = y

x/(x + 2) = 6/10
10x = 6x + 12
4x = 12
x = 3

semoga membantu ^^