selesaian dari 1/y +2/x = 4 dan 3/y - 1/x= 5 adalah... a. x= 1/2,y=-1 b. x= -1/2,y=-1 c. x=1/2,y=1 d. x=1, y=1/2 *tolongbantupakaicara

1/y = t
1/x = u

t + 2u = 4|× 1
3t - u = 5|× 2

t + 2u = 4
6t - 2u = 10
_________+
7t = 14
t = 2
1/y = 2
1 = 2 × y
2y = 1
y = ½

t + 2u = 4
2 + 2u = 4
2u = 4 - 2
2u = 2
u = 1
1/x = 1
1 = x
x = 1

Jawaban : d. x = 1, y = ½

Maaf Kalau Salah