Asalamu'alaikum kak . . :) Mau nanya nih soal Matematika kelas X :D

[tex] \frac{4}{p} - \frac{1}{q} = 1 \\ \frac{2}{p} + \frac{2}{q} =3 [/tex]

misal 1/p = x, 1/q = y

4x - y = 1 ===> y = 4x - 1 (i)
2x + 2y = 3 (ii)

subs (i) ke (ii)
2x +2(4x - 1) = 3
2x + 8x - 2 =3
10x = 5
x = [tex] \frac{5}{10} = \frac{1}{2} [/tex]
1/p = 1/2
p = 2

y = 4x - 1
y = 4.(1/2) - 1 = 2 - 1 = 1

1/q = 1
q = 1


x +2y = n
2 + 2.1 = n
4 = n