a. 2/x + 3/y = 16 3/x - 1/y = 2 b. 4/x + 9/y = (-1) 2/x - 3/y = 2

a. 2x + 3y = 16
3x - y = 2
jawab= 2x + 3y = 16 (x3)
3x - 1y = 2 (x2)
= 6x + 9y = 48
6x - 2y = 4
kemudian dikurang dan hasilnya
= 11y = 44
y = 4
metode subtitusi
2x + 3(4) = 16
2x + 12 = 16
2x = 16-12
2x = 4
x = 2