tolong bantu nya dengan jalannya

2/3 x+1/5 y=8→15(2/3 x+1/5y=8)→10x+3y=120
1/3 x -1/5y=-5→15(1/3 x-1/5y=-5)→5x-3y=-5

setarakan
2(5x-3y=-5)=10x-6y=-10

jadi
10x+3y=120
10x-6y=-10
___________-
9y=130
  y=14,44

10x+3y=120
10x+3(14,44)=120
10x=120-43,33
10x=76,67
x=76,67/10
x=7,667

2p+q=2x+y
         =2(7,667)+14,44
         =15,334+14,44
         =29,774