kalau ada yg bisa,,,tlg jwb yach! yang rom 2,,, pplliisss tgs bynk ni :'(

1. variable x
2. -5
3. 2
4. 6(3y) +2y =40
18y+2y = 40
20y = 40
y= 2

x=3y
x=3(2)
x=6