tolong bantu ya no 4,5,6

4. 12/9 = x/12 = 9x = 144
X= 144/9 =16
P = 16-12 = 4

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

6. 10/6 = 10/y = 10y = 60
y= 60/10=6

10/6 = x/x+2 = 6x = 10(x+2)
6x = 10x +20
10x -6x = 20
4x =20
x= 20/4=5