Diketahui sistem persamaan: 1/2 a + 2/3 b - 1/5 c = 2 3/2 a

Diketahui sistem persamaan: 1/2 a + 2/3 b - 1/5 c = 2 3/2 a - 1/3 b + 2/5 c = 4 1/2 a + 1/3 b - 1/5 c = 1 Nilai (a+b/c)-(b+c/a)+(c+a/b) = ....